This Bible contradiction is from the Skeptic's Annotated Bible.
Jesus sent the Holy Ghost.
John 15:26 View context
But when the Comforter is come, whom I will send unto you from the Father, [even] the Spirit of truth, which proceedeth from the Father, he shall testify of me:
The Father sent the Holy Ghost.
John 14:26 View context
But the Comforter, [which is] the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.