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Quick answer: The Greek word behind “Behold the Lamb of God” is amnos (ἀμνός, pronounced AM-noss), Strong’s G286 – the lamb of the offering, the one brought to the altar. It occurs only four times in the entire New Testament: John 1:29, John 1:36, Acts 8:32 and 1 Peter 1:19. And not one of those four is about an animal. Every time the New Testament says amnos, it is pointing at a person.
Word Study: Where It Comes From
Amnos is one of the oldest words in the Greek language. Strong’s calls it “apparently a primary word” – meaning there is no verb sitting underneath it to pry open, no root that explains it. It was simply there. Trace it back and it runs through Proto-Hellenic *abnós to a Proto-Indo-European ancestor, *h₂egʷnós, which is older than Greek itself.
That matters for a reason you can hear in a church service. The Latin word for lamb is agnus – the same ancient word carried down a different branch of the family tree. So the Latin prayer Agnus Dei and the Greek of John 1:29 are not really a translation of one another; they are cousins who grew up apart. The Old English cousin, ēanian, survives in the dialect verb yean, to give birth to a lamb. Slavic kept agnę. Four languages, one word, no borrowing.
Here is the surprise, though. In ordinary classical Greek, amnos was not especially precise. It could mean a lamb, and it could also mean a sheep in general – ram or ewe, young or not. The altar vocabulary we hear in it is not in the word’s bones. It was put there by a book.
That book is the Septuagint, the Greek translation of the Hebrew Scriptures that Greek-speaking Jews actually read. There, amnos becomes the regular word for the lamb of the offering. Leviticus 14:10 calls for δύο ἀμνοὺς ἐνιαυσίους ἀμώμους – two lambs, a year old, without blemish. The guilt offering a few verses later is τὸν ἀμνὸν τῆς πλημμελίας, the lamb of the trespass. By the first century, amnos had spent roughly three hundred years meaning one thing to anyone who read Scripture in Greek: the animal you bring.
Which is what makes the next fact strange. The New Testament inherits a word thoroughly soaked in sacrifice – and then never once uses it of an animal.
Where This Word Appears in the Bible
Because amnos occurs only four times, the table below is not a selection of highlights. It is the complete list.
| Reference | KJV Text | What the word is doing |
|---|---|---|
| John 1:29 | “Behold the Lamb of God, which taketh away the sin of the world.” | John the Baptist names Jesus with the altar word |
| John 1:36 | “And looking upon Jesus as he walked, he saith, Behold the Lamb of God!” | The same man, the next day, with the explanation removed |
| Acts 8:32 | “He was led as a sheep to the slaughter; and like a lamb dumb before his shearer, so opened he not his mouth:” | Isaiah 53:7 read aloud in Greek, in a moving chariot |
| 1 Peter 1:19 | “But with the precious blood of Christ, as of a lamb without blemish and without spot:” | The only amnos that is written rather than spoken |
Verse Deep Dive: John 1:29 and 1:36
John the Baptist says it twice, on two consecutive days, and the second time is shorter.
The first is the famous one: “The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world” (John 1:29). Two details in that sentence are easy to read straight past.
The first is “sin,” singular. The Greek is ἁμαρτίαν, accusative singular – the sin of the world, not the sins. Not an itemised account of everybody’s failures. One condition, shared by everybody.
The second is “taketh away.” The Greek is ὁ αἴρων (ho airōn), a present active participle of αἴρω (G142) – and αἴρω does not mean to cover, excuse or settle. It means to pick something up and carry it off. It is the verb in “Rise, take up thy bed, and walk” (John 5:8). The Lamb of John 1:29 does not conceal the sin of the world or pay a fee against it. The Lamb picks it up and walks away with it.
And the participle is present tense, which in Greek carries ongoing action. Not “took away,” finished, back there. Taking away – the tense of something still going on while you read the sentence.
Then comes the next day. “Again the next day after John stood, and two of his disciples; And looking upon Jesus as he walked, he saith, Behold the Lamb of God! And the two disciples heard him speak, and they followed Jesus” (John 1:35-37).
The explanation is gone. No “which taketh away the sin of the world” this time – just the title and an exclamation mark. It is the shorter sermon, and it is the one that actually moved somebody: the two men standing beside him heard it and left. One of them was Andrew, who immediately went and found his brother Simon Peter (John 1:40-41).
So the Baptist’s recorded preaching in this Gospel comes to a point where he names Jesus with the altar word and then watches his own followers walk off after him. He loses his congregation to the sentence, and seems to have considered that the job working correctly: “He must increase, but I must decrease” (John 3:30).
One last thing worth noticing across all four occurrences. Jesus never uses this word of himself. Not once. Amnos is said about him – by John the Baptist, by Peter in a letter, and by Isaiah read aloud off a scroll – but never by him.
Not All “Lamb” Words Are the Same
English uses one word, “lamb,” where the Greek New Testament uses three – and the choice between them tracks something real.
- Amnos (ἀμνός, G286) – the lamb of the offering. Four occurrences, all of Christ, all of them circling a death. This is the Septuagint’s altar word.
- Arēn (ἀρήν, G704) – a lamb, plainly. Exactly one occurrence in the New Testament, and it is not about Jesus at all: “behold, I send you forth as lambs among wolves” (Luke 10:3). A curiosity of this word is that its nominative form had fallen out of use, so Greek built the remaining cases off the stem arn-.
- Arnion (ἀρνίον, G721) – little lamb. A diminutive formed from arēn. Thirty occurrences, and they land in a surprising place: twenty-nine of them are in Revelation, and the one that is not is John 21:15.
- Probaton (πρόβατον, G4263) – sheep. Not a lamb word at all, but it stands right beside one in Acts 8:32: “led as a sheep (probaton) to the slaughter; and like a lamb (amnos) dumb before his shearer.”
Sit with that arnion count for a moment. The figure on the throne in Revelation – “a Lamb as it had been slain, having seven horns and seven eyes” (Revelation 5:6), the one the whole book bows to – is named twenty-nine times with a diminutive. Little lamb. The book that ends the Bible, full of thrones and trumpets and a sea of glass, reaches for the smallest word available.
And the only time arnion appears outside Revelation, it is in Jesus’ hands being given away: “Feed my lambs” (John 21:15). The flock Peter is handed and the figure on the throne are called by the same word.
If you want the Hebrew side of this – where the Old Testament’s main lamb word turns out not to name a species at all – that is a separate word study on seh.
Why the Original Word Changes the Meaning
In English, “lamb” is mostly a nursery word. Soft, small, woolly, harmless. Put “Lamb of God” in front of an English speaker and the first thing that arrives is gentleness.
Amnos did not arrive that way. Its three centuries of Septuagint service were spent at an altar, in sentences about guilt offerings and blood and animals inspected for defects. When John the Baptist used it, nobody within earshot heard “how sweet.” They heard what the word had always meant: here is the one being brought.
Watch Peter use it and you can see him reaching for exactly that vocabulary. “Ye were not redeemed with corruptible things, as silver and gold… but with the precious blood of Christ, as of a lamb without blemish and without spot” (1 Peter 1:18-19). “Without blemish” is ἄμωμος (amōmos, G299) – literally a-, not, plus momos, blemish. It is the Septuagint’s standard stamp of approval on a sacrificial animal, the word in Leviticus 1:3 and Leviticus 22:21. Peter sets amnou amōmou side by side, and anyone who had read Leviticus 14:10 in Greek – “two lambs, a year old, without blemish” – would have recognised the phrase as a quotation from a rulebook.
There is one more thing in Peter’s sentence that English word order hides. In Greek the line runs: the precious blood, as of a lamb unblemished and spotless – of Christ. The name comes last. Peter lays out the offering in full, in the old altar vocabulary, and only then tells you whose blood he has been describing.
And then there is the verb. Because αἴρω means lift and carry off rather than cover over, John 1:29 is not a sentence about sin being overlooked. It is a sentence about sin being moved – taken off the place it was sitting and carried somewhere else. In the present tense. Which means that if you are reading the verse while carrying something, the verse is already in the right tense for it.
Living It Out
The tense is the practical part. “Taketh away” is not a report about something finished long ago that you have to reason your way back to on a bad afternoon. It is a present participle: the carrying is what the Lamb is doing now.
Most of us have one thing we hand over and then quietly take back – a failure confessed more than once, a worry we return to the moment the house goes quiet. Try this: name the one you most reflexively re-shoulder. Then read John 1:29 slowly and let the verb do what it actually says. Not covered. Not overlooked. Lifted and carried off. If a thing has been carried away, you are not required to go and fetch it.
Journal Prompts
- Ho airōn is present tense – the carrying is happening now, not only back there. Write about one thing you have handed over and then picked back up. What makes you reach for it again, and what would change if you read “taketh away” as today’s tense rather than history’s?
- John the Baptist’s shorter announcement was the one that worked: he left out the explanation, and two of his own disciples walked off to follow Jesus. Where are you adding explanation to something that would land better said plainly? And is there something you are holding onto that you are actually meant to be handing away?
- Revelation calls the figure on the throne by a diminutive – arnion, little lamb – twenty-nine times, and the only other use of that word is “Feed my lambs.” Why do you think the Bible’s most powerful picture of Jesus uses its smallest word for him? What does that do to your own picture of what strength looks like?
Prayer
Lord, John the Baptist watched Jesus walking past and called him the amnos – the lamb brought to the altar, chosen and unblemished – and the two men standing nearby heard it and followed. Let me hear it that plainly. Thank You that the verb is lift and carry off and not cover over, and that it is written in a tense that has not finished. I have things I keep picking back up. Teach me to leave them where they have already been carried. And when I start believing that strength has to look large, remind me that the One on the throne is called a little lamb. Amen.
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- The Greek word for “lamb” in “Behold the Lamb of God” is amnos – and it appears only four times in the whole New Testament. Not one of the four describes an actual animal. Every time, it is pointing at a person. [Post URL]
- John 1:29 says the Lamb of God “taketh away” the sin of the world. The Greek verb is airō – to pick up and carry off, the same verb as “take up thy bed.” Not covered over. Lifted and carried away, in the present tense. [Post URL]
FAQ
How many times does the word “amnos” appear in the New Testament?
Four: John 1:29, John 1:36, Acts 8:32 and 1 Peter 1:19. None of the four describes an actual animal – all four refer to Christ. The far more common New Testament lamb word is arnion, which appears thirty times, twenty-nine of them in Revelation.
Is the Lamb in Revelation the same Greek word as the Lamb of God in John?
No. John 1:29 uses amnos (ἀμνός, G286), the Septuagint’s word for the lamb of the offering. Revelation uses arnion (ἀρνίον, G721), a diminutive meaning “little lamb,” twenty-nine times. The change of word is one of the quiet surprises of the New Testament: the dying Lamb gets the altar word, and the enthroned Lamb gets the small one.
Does “taketh away” in John 1:29 mean sin is covered or removed?
Removed. The Greek is ὁ αἴρων (ho airōn), from αἴρω (G142), which means to lift, take up and carry off – the same verb in “take up thy bed, and walk” (John 5:8). It is not a word for concealing or offsetting something. It is a word for picking it up and taking it elsewhere. The participle is present tense, so the action is presented as ongoing rather than completed in the past.
Why does the Latin say “Agnus Dei” if the Greek word is “amnos”?
Because agnus and amnos are cousins rather than translations. Both descend from the same Proto-Indo-European word for a lamb, *h₂egʷnós, which also produced Old Church Slavonic agnę and the Old English verb ēanian, to give birth to a lamb. The Latin and the Greek are the same ancient word arriving by two different routes.
