This Bible contradiction is from the EvilBible.com.
Two thieves reviled Christ
Matthew 27:44 View context
The thieves also, which were crucified with him, cast the same in his teeth.
Mark 15:32 View context
Let Christ the King of Israel descend now from the cross, that we may see and believe. And they that were crucified with him reviled him.
Only one thief reviled Christ
Luke 23:39-40 View context
And one of the malefactors which were hanged railed on him, saying, If thou be Christ, save thyself and us.
But the other answering rebuked him, saying, Dost not thou fear God, seeing thou art in the same condemnation?