Matthew 22:18-21 NIV

18 But Jesus, knowing their evil intent, said, "You hypocrites, why are you trying to trap me?
19 Show me the coin used for paying the tax." They brought him a denarius,
20 and he asked them, "Whose portrait is this? And whose inscription?"
21 "Caesar's," they replied. Then he said to them, "Give to Caesar what is Caesar's,1 and to God what is God's."

References for Matthew 22:21