The reading is from St. Paul's Second Letter to the Corinthians 8:7-15

Brethren, as you excel in everything in faith, in utterance, in knowledge, in all earnestness, and in your love for us see that you excel in this gracious work also.

I say this not as a command, but to prove by the earnestness of others that your love also is genuine. For you know the grace of our Lord Jesus Christ, that though he was rich, yet for your sake he became poor, so that by his poverty you might become rich. And in this matter I give my advice: it is best for you now to complete what a year ago you began not only to do but to desire, so that your readiness in desiring it may be matched by your completing it out of what you have. For if the readiness is there, it is acceptable according to what a man has, not according to what he has not. I do not mean that others should be eased and you burdened, but that as a matter of equality your abundance at the present time should supply their want, so that their abundance may supply your want, that there may be equality. As it is written, "He who gathered much has nothing over, and he who gathered little had no lack."