John Wesley on 1 Corinthians 16:2

Let every one - Not the rich only: let him also that hath little, gladly give of that little. According as he hath been prospered - Increasing his alms as God increases his substance. According to this lowest rule of Christian prudence, if a man when he has or gains one pound give a tenth to God, when he has or gains an hundred he will give the tenth of this also. And yet I show unto you a more excellent way. He that hath ears to hear, let him hear. Stint yourself to no proportion at all. But lend to God all you can.