Ambrosiaster : Paul is saying that the Corinthians should give as much as they are willing and able to give. That way their conscience would become clear and not be clouded by pretense, pleasing man but not God. — COMMENTARY ON PAUL'S EPISTLES John Chrysostom : He said not, ye have done it, but, ye have put a completion to it, "That as there was the readiness to will, so also [there may be] the completion also out of your ability." That this good work halt not at readiness but receive also the reward that follows upon deeds. — Homily 17 on 2 Corinthians