My favorite clobber passage is this one.

John 7:22 "Yet, because Moses gave you circumcision (though actually it did not come from Moses, but from the patriarchs), you circumcise a boy on the Sabbath." (Yes, Jesus said the Bible isn't the perfect inerrant word of God.)

Jesus is speaking of circumcision of the heart instead of the body, Deuteronomy 10:16-19, Deuteronomy 30:6, Romans 2:29 (Paul got it right here).

Then, Jesus spoke against food prohibitions also in Genesis 9:3, sacrifices and burnt offerings, Mark 7:14-16, Mark 7:19, Matthew 15:11, Matthew 15:17-20, Mark 12:33 (Isaiah 1:11, 1 Samuel 15:22, Psalm 40:6 and Psalm 51:16).

Everyone quotes Matthew 5:38-44 but they don't stop to think that Jesus is speaking against passages in the OT. There is also Matthew 5:43-44.

I have a list that I created to teach the truth of Jesus because I am very disturbed about all of the lies being told about Him. This is called blasphemy and taking the Lord's name in vain. satan (lower case to disrespect) is in many churches.