1 Corinthians 11:24 King James Version (KJV)
24 And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me.
1 Corinthians 11:24 New International Version (NIV)
24 and when he had given thanks, he broke it and said, “This is my body, which is for you; do this in remembrance of me.”
This change is to proof text the catholic doctrine of transubstantiation.
John 7:8 King James Version (KJV)
8 Go ye up unto this feast: I go not up yet unto this feast: for my time is not yet full come.
John 7:8 New International Version (NIV)
8 You go to the festival. I am not going up to this festival, because my time has not yet fully come.”
This alteration is to proof text the separation of the Jews out of the faith or what is known as antinomianism.