Romans 1:20

1:20 For since the creation of the world his invisible attributes – his eternal power and divine nature – have been clearly seen, because they are understood through what has been made. So people are without excuse.

Romans 15:27

15:27 For they were pleased to do this, and indeed they are indebted to the Jerusalem saints. For if the Gentiles have shared in their spiritual things, they are obligated also to minister to them in material things.