This Bible contradiction is from the EvilBible.com.
Holy ghost bestowed at pentecost
Acts 1:5 View context
For John truly baptized with water; but ye shall be baptized with the Holy Ghost not many days hence.
Acts 1:8 View context
But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.
Holy ghost bestowed before pentecost
John 20:22 View context
And when he had said this, he breathed on [them], and saith unto them, Receive ye the Holy Ghost: