II Corinthians 8:8-11

I speak not by commandment, but I am testing the sincerity of your love by the diligence of others. For you know the grace of our Lord Jesus Christ, that though He was rich, yet for your sakes He became poor, that you through His poverty might become rich. And in this I give advice: It is to your advantage not only to be doing what you began and were desiring to do a year ago; but now you also must complete the doing of it; that as there was a readiness to desire it, so there also may be a completion out of what you have.