Yet have I sent the brethren - The brethren referred to in 2 Corinthians 8:18, 2 Corinthians 8:22-23.

Lest our boasting of you - That you were disposed to contribute, and that you were already prepared, and that the contribution was ready.

Should be in vain - Lest anything should have occurred to prevent the collection. I have sent them that they may facilitate it, and that it may be secure and certain.

In this behalf - In this respect. That is, lest our boasting of you, in regard to your readiness to contribute to relieve the needs of others, should be found to have been ill-grounded.

Yet have I sent the brethren - Titus and his companions, mentioned in the preceding chapter.

That, as I said, ye may be ready - And he wished them to be ready, that they might preserve the good character he had given them: this was for their honor; and if they did not take care to do so, he might be reputed a liar; and thus both they and himself be ashamed before the Macedonians, should any of them at this time accompany him to Corinth.

Yet have I sent the brethren,.... Titus, and the other two mentioned in the foregoing chapter: one manuscript reads, "we have sent"; and the Ethiopic version, "they have sent", that is, the Macedonians; but the common reading is best. It might be objected, that since the apostle knew the forwardness of their minds, how ready they were a year ago, and had boasted so much of their liberality, that it must be unnecessary to send the brethren to them, to stir them up to this work; which objection is prevented by observing the reason of his sending them:

lest our boasting of you should be in vain in this behalf: or, "in this part", in this particular thing, , "concerning this business", or affair of beneficence to the poor, as the Syriac version renders it. He had boasted of them with respect to other things besides this; but he was chiefly concerned, knowing the frailty and changeableness of human nature, and how possible it was that their forwardness might abate, and they grow cold and indifferent to such service, lest his glorying of them should be in vain in this particular instance; wherefore he sent the brethren to put them on, that as they had begun they would finish:

that as I said ye may be ready, That as he had said to the Macedonians, that they were ready in mind, it might appear to be so; or as he had ordered them in his former epistle, they might be actually ready; have their collection ready made, so that there might be no gathering when he came.

Yet have I sent the brethren, lest our boasting of you should be in vain in this behalf; that, as I said, ye may be ready:

9:3 Yet have I sent the brethren. See 2Co 8:17,18,22. He sent them so that they would surely be prepared when he came.

9:3 I have sent the above mentioned brethren before me.

3. have I sent-we should say, "I send"; whereas the ancients put it in the past, the time which it would be by the time that the letter arrived.

the brethren-(2Co 8:18, 22)-Titus and the two others.

should be in vain in this behalf-"should be proved futile in this particular," however true in general (2Co 7:4). A tacit compliment, softening the sharp monition.

as I said-as I was saying (2Co 9:2).

9:1-5 When we would have others do good, we must act toward them prudently and tenderly, and give them time. Christians should consider what is for the credit of their profession, and endeavour to adorn the doctrine of God their Saviour in all things. The duty of ministering to the saints is so plain, that there would seem no need to exhort Christians to it; yet self-love contends so powerfully against the love of Christ, that it is often necessary to stir up their minds by way of remembrance.