Acts 18:6
When the Jews resisted [Paul's efforts] and spoke against him and his message, he shook out his clothing [i.e., an expression of rejection and contempt] and said to them "Let your blood be on your own heads [i.e., you are responsible for whatever harm comes from your action]; I am not responsible. From now on I will go [and preach] to the Gentiles [only]."
Acts 20:26
Therefore, I [must] declare to you today that I am not responsible for what happens to any of you.
Romans 10:3
For they did not know about God's way of making people right with Himself, so they attempted to establish their own way. In doing this they did not submit to God's way for being made right with Him.