HistoricalChristian.Faith

2 Corinthians 8:8

8 I speak not by commandment, but by occasion of the forwardness of others, and to prove the sincerity of your love.
Commentaries
Ambrosiasteron 2 Corinthians 8:8AD 384
Paul is not ordering the Corinthians to send money to those who are suffering want but encouraging them to do so, demonstrating that they have the right attitude toward God and others. In return for their generosity they will undoubtedly receive a reward.
Source: COMMENTARY ON PAUL'S EPISTLES
John Chrysostomon 2 Corinthians 8:8AD 407
See how constantly he humors them, how he avoids offensiveness, and is not violent nor compulsory; or rather what he says hath both these, with the inoffensiveness of that which is uncompelled. For after he had repeatedly exhorted them and had greatly commended the Macedonians, in order that this might not seem to constitute a necessity, he says,

"I speak not by way of commandment, but as proving through the earnestness of others, the sincerity also of your love."

'Not as doubting it,' (for that is not what he would here imply,) 'but to make it approved, display it and frame it unto greater strength. For I therefore say these things that I may provoke you to the same forwardness. And I mention their zeal to brighten, to cheer, to stimulate your inclinations.' Then from this he proceeded to another and a greater point. For he lets slip no mode of persuasion, but moves heaven and earth in handling his argument. For he exhorted them both by other men's praises, saying, Ye know "the grace of God which hath been given in the Churches of Macedonia;" and by their own, "therefore that ye abound in everything, in utterance and knowledge." For this hath power to sting man more that he falls short of himself, than that he does so of others.
Theophylact of Ohridon 2 Corinthians 8:8AD 1107
That is, not compelling you and not doing you violence.

That is, I praise the Macedonians for the purpose of showing your love for the poor saints, through their zeal, as more praiseworthy and more illustrious.
Thomas Aquinason 2 Corinthians 8:8AD 1274
But because there might be a suspicion that he was ordering them to give alms, contrary to what is stated in Ezek. (34:4): "With force and harshness you have ruled them," he removes this, saying: "I say this not as a command," i.e., what I asked Titus, or the fact that I say this to you, I did not do as though commanding: "Not as domineering over those in your charge but being examples to the flock" (1 Pet. 5:3). But I say this to prove, i.e., desiring to prove, by the earnestness of others, namely, the Macedonians, that your love also is genuine. Here it should be noted that a good disposition refers not only to an aptitude to learn easily, but also to acting well, the reason being that in order to act well, a knowledge which directs is necessary. Therefore, just as in learning, a person is said to have a good disposition, if he quickly grasps the words of the teacher, so in doing good a person is said to have a good disposition, if he is quickly moved to do good by the example of others. That is why the Apostle says, to prove that your love also is genuine, i.e., how prompt a will you have for giving when moved by the example of the Macedonians: "I do not write this to make you ashamed, but to admonish you as my beloved children" (1 Cor. 4:14).