2 Corinthians 8:11

“Now therefore perform the doing of it, etc..] This is a conclusion from the former advice, to finish what was readily willed; for as it is not enough to do a thing, unless it is done cheerfully and willingly, so it is not sufficient to express a good will to such service as is here called to, without doing it; both should go together: that as there was a readiness to will, so there may be a performance also; in some cases there is neither power nor will to do good; in others there is will, when there is not a power; but in this case of beneficence to the poor saints, as there was a willingness declared, there was an ability in the Corinthians to perform; they had it in the power of their…”

“perform--"complete the doing also" (see on Co2 8:10). a readiness to will--Greek, "the readiness of will"; referring to Co2 8:10, where the Greek for "to be forward," ought to be translated as here, "to will." performance--"completion" [ALFORD], The godly should show the same zeal to finish, as well as to begin well, which the worldly exhibit in their undertakings (Jer 44:25).”

“As there was a readiness to will - Now accomplish the thing, and be not satisfied with having begun it. Do not suppose that the intention was sufficient, or that you are now released from the obligation. A year indeed has elapsed; but the necessity of the aid for the poor has not ceased. The sentiment here is, that if we have felt it our duty to aid in a cause of benevolence, and have commenced it, and have then been interrupted in executing our purpose, we should seize the first favorable opportunity to accomplish what we had designed. We should not regard ourselves as released from our obligation, but should, from a regard to consistency and our obligation to God, accomplish what we had…”