9 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. 10 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, 11 so that your readiness in desiring it may be matched by your completing it out of what you have. 12 For if the readiness is there, it is acceptable according to what a man has, not according to what he has not. 13 I do not mean that others should be eased and you burdened, 14 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. 15 As it is written, "He who gathered much had nothing over, and he who gathered little had no lack."

Matthew Henry's Commentary on 2 Corinthians 8:9-15

Commentary on 2 Corinthians 8:7-9

(Read 2 Corinthians 8:7-9)

Faith is the root; and as without faith it is not possible to please God, Hebrews 11:6, so those who abound in faith, will abound in other graces and good works also; and this will work and show itself by love. Great talkers are not always the best doers; but these Corinthians were diligent to do, as well as to know and talk well. To all these good things the apostle desires them to add this grace also, to abound in charity to the poor. The best arguments for Christian duties, are drawn from the grace and love of Christ. Though he was rich, as being God, equal in power and glory with the Father, yet he not only became man for us, but became poor also. At length he emptied himself, as it were, to ransom their souls by his sacrifice on the cross. From what riches, blessed Lord, to what poverty didst thou descend for our sakes! and to what riches hast thou advanced us through thy poverty! It is our happiness to be wholly at thy disposal.

Commentary on 2 Corinthians 8:10-15

(Read 2 Corinthians 8:10-15)

Good purposes are like buds and blossoms, pleasant to behold, and give hopes of good fruit; but they are lost, and signify nothing without good deeds. Good beginnings are well; but we lose the benefit, unless there is perseverance. When men purpose that which is good, and endeavour, according to their ability, to perform also, God will not reject them for what it is not in their power to do. But this scripture will not justify those who think good meanings are enough, or that good purposes, and the mere profession of a willing mind, are enough to save. Providence gives to some more of the good things of this world, and to some less, that those who have abundance might supply others who are in want. It is the will of God, that by our mutual supplying one another, there should be some sort of equality; not such a levelling as would destroy property, for in such a case there could be no exercise of charity. All should think themselves concerned to relieve those in want. This is shown from the gathering and giving out the manna in the wilderness, Exodus 16:18. Those who have most of this world, have no more than food and raiment; and those who have but little of this world, seldom are quite without them.