The fish was an early symbol of Christian faith. It is thought that the early Christians chose it for several possible reasons:
- the Greek word for fish (ICHTUS), fits nicely as an acrostic for "Jesus Christ, God's Son, Savior"
- Persecutors of Christians would be oblivious to the fish as a Christian symbol.
- Jesus' linked His ministry with fish: he chose several fishermen as disciples and declared he would make them "fishers of men."