This Bible contradiction is from the Skeptic's Annotated Bible.
The imprisonment of John the Baptist
Matthew 4:12 View context
Now when Jesus had heard that John was cast into prison, he departed into Galilee;
Mark 1:14-17 View context
Now after that John was put in prison, Jesus came into Galilee, preaching the gospel of the kingdom of God,
And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.
Now as he walked by the sea of Galilee, he saw Simon and Andrew his brother casting a net into the sea: for they were fishers.
And Jesus said unto them, Come ye after me, and I will make you to become fishers of men.
Peter and Andrew were called
John 1:40-42 View context
One of the two which heard John [speak], and followed him, was Andrew, Simon Peter's brother.
He first findeth his own brother Simon, and saith unto him, We have found the Messias, which is, being interpreted, the Christ.
And he brought him to Jesus. And when Jesus beheld him, he said, Thou art Simon the son of Jona: thou shalt be called Cephas, which is by interpretation, A stone.
John 3:22-24 View context
After these things came Jesus and his disciples into the land of Judaea; and there he tarried with them, and baptized.
And John also was baptizing in Aenon near to Salim, because there was much water there: and they came, and were baptized.
For John was not yet cast into prison.