They were pleased to do it, and indeed they owe it to them. For if the Gentiles have shared in the Jews' spiritual blessings, they owe it to the Jews to share with them their material blessings. (NIV)
They were pleased to do it; and surely they are in debt to them, for if these Gentiles have come to share in their [the Jerusalem Jews'] spiritual blessings, then they ought also to be of service to them in material blessings. (AMP)
It hath pleased them verily; and their debtors they are. For if the Gentiles have been made partakers of their spiritual things, their duty is also to minister unto them in carnal things. (KJV)