Berean Fact Sheet Number 014

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The Fish: An Ancient Christian Symbol
Copyright © 2003, 2006 by Larry G. Overton

Decals and bumperstickers sporting the symbol of the fish are seen on cars all the time. In some cases, the mere outline of a fish is all that is displayed. In other cases, the outline of the fish has a cross inside of it, strategically placed so as to resemble the eye of the fish (I call this one the “cross-eyed fish”). In still other cases, the outline of the fish encloses a written word: either the name “Jesus” or the Greek word ΙΧΘΥΣ. (We’ll talk more about that Greek word in just a moment.)

So what does this fish symbol mean? How did the use of the outline of a fish come to be a Christian symbol? Is it Scriptural? Answering these questions is what this Berean Fact Sheet is all about.

What Does It Mean?

The fish symbol is used to represent Jesus Christ. To discover why, we must now discuss that Greek word I mentioned earlier: ΙΧΘΥΣ (pronounced ich-thys). And the word, as you may have already guessed, means “fish.” The form ΙΧΘΥΣ is spelled in all uncial (i.e., capital) letters. Written in cursive or minuscule letters, it would look like this: ιχθὺς.

This Greek word for “fish” is used as an ancient acronym, a word “formed from the initial letter of each of the successive parts of a compound term.” For a modern example of an acronym, consider the word “radar” (radio detecting and ranging). In the case of the word ΙΧΘΥΣ, it was and is used as an acronym for ̉Ιησου̃ς Χριστὸς Θεου̃ Υιὸς Σωτήρ, which means, “Jesus Christ, God’s Son, Savior.” (For more detailed information on the preceding Greek phrase, see the following table.)

How Did It Start?

But we, little fishes, after the example of our ΙΧΘΥΣ Jesus Christ, are born in water, nor have we safety in any other way than by permanently abiding in water…

Two hundred years later, Augustine of Hippo wrote concerning the ΙΧΘΥΣ acronym in his De Civitate Dei or The City of God (Book XVIII, Chapter 23).

But if you join the initial letters of these five Greek words, ̉Ιησου̃ς Χριστὸς Θεου̃ Υιὸς Σωτήρ, which mean, “Jesus Christ the Son of God, the Saviour,” they will make the word ιχθὺς, that is, “fish,” in which word Christ is mystically understood, because He was able to live, that is, to exist, without sin in the abyss of this mortality as in the depth of waters.

Regarding this comment by Augustine, there can be no doubt that the ΙΧΘΥΣ acronym was known in the early fifth century AD (Augustine completed The City of God in 426 AD). It is significant too that he, like Tertullian before him, wrote in Latin and switched languages when referring to “these five Greek words” (i.e., Iēsous Christos Theou Uios Sōtēr [ ̉Ιησου̃ς Χριστὸς Θεου̃ Υιὸς Σωτήρ]) and to the word ichthys [ιχθὺς].

Is It Scriptural?

This ΙΧΘΥΣ acronym is not spelled out and explained in some passage of Scripture in the Greek New Testament. However, the meaning of this Greek acronym is most definitely Scriptural. It is said that the fish became a Christian symbol because of several of the apostles being fishermen, and because Jesus said to them, “Follow me, and I will make you fishers of men.” (Matthew 4:19; Mark 1:17)

Furthermore, the theological statement behind the ΙΧΘΥΣ acronym is also thoroughly Scriptural. In the first verse of his Gospel, Mark speaks of the beginning of the good news “of Jesus Christ the Son of God” (Greek, Iēsou Christou Uiou tou Theou [̉Ιησου̃ Χριστου̃ του̃ Θεου̃]). The announcement to the shepherds in Luke 2:11 was, “For to you is born this day, in the city of David, a Savior, who is Christ the Lord.” The Greek word used for “Savior” is Sōtēr [ Σωτήρ].

Therefore, while the acronym itself may not date from New Testament times, its meaning is Scriptural. And the evidence shows that: it developed soon after the first century; that it was known at the end of the second century; and that it was well established by the early fifth century. Christians today may therefore use it with confidence in their statement of faith in Jesus of Nazareth as the Anointed One (or “Christ”), the Son of God and our Savior.