I know the forwardness of your mind - You have already firmly purposed to contribute to the support of the poor and suffering saints.

That Achaia was ready a year ago - The whole of the Morea was anciently called Achaia, the capital of which was Corinth. The apostle means, not only Corinth, but other Churches in different parts about Corinth; we know there was a Church at Cenchrea, one of the ports on the Corinthian Isthmus.

Your zeal hath provoked very many - Hearing that the Corinthians were so intent on the relief of the sufferers in Palestine, other Churches, and especially they of Macedonia, came forward the more promptly and liberally.

the forwardness.

2 Corinthians 8:8,10,19 I speak not by commandment, but by occasion of the forwardness of others, and to prove the sincerity of your love...

1 Thessalonians 1:7 So that you were ensamples to all that believe in Macedonia and Achaia.

I boast.

2 Corinthians 8:24 Why show you to them, and before the churches, the proof of your love, and of our boasting on your behalf.

that.

2 Corinthians 1:1 Paul, an apostle of Jesus Christ by the will of God, and Timothy our brother, to the church of God which is at Corinth...

2 Corinthians 8:10 And herein I give my advice: for this is expedient for you, who have begun before, not only to do, but also to be forward a year ago.

1 Corinthians 16:15 I beseech you, brothers, (you know the house of Stephanas, that it is the first fruits of Achaia...

provoked.

2 Corinthians 8:8 I speak not by commandment, but by occasion of the forwardness of others, and to prove the sincerity of your love.

Hebrews 10:24 And let us consider one another to provoke to love and to good works:

3D Day. All-Sufficient Grace.
"He is Faithful that Promised." "God is able to make all grace abound toward you; that ye, always having all sufficiency in all things, may abound to every good work."--2 COR. ix. 8. All-Sufficient Grace. "All-sufficiency in all things!" Believer! surely thou art "thoroughly furnished!" Grace is no scanty thing, doled out in pittances. It is a glorious treasury, which the key of prayer can always unlock, but never empty. A fountain, "full, flowing, ever flowing, overflowing." Mark these three …
John Ross Macduff—The Faithful Promiser

Perseverance Proved.
2. I REMARK, that God is able to preserve and keep the true saints from apostacy, in consistency with their liberty: 2 Tim. i. 12: "For the which cause I also suffer these things; nevertheless, I am not ashamed; for I know whom I have believed, and am persuaded that he is able to keep that which I have committed unto him against that day." Here the apostle expresses the fullest confidence in the ability of Christ to keep him: and indeed, as has been said, it is most manifest that the apostles expected …
Charles Grandison Finney—Systematic Theology

A Liberal Church
In his first letter to the church at Corinth, Paul gave the believers instruction regarding the general principles underlying the support of God's work in the earth. Writing of his apostolic labors in their behalf, he inquired: "Who goeth a warfare any time at his own charges? who planteth a vineyard, and eateth not of the fruit thereof? or who feedeth a flock, and eateth not of the milk of the flock? Say I these things as a man? or saith not the law the same also? For it is written in the law of …
Ellen Gould White—The Acts of the Apostles