2 Corinthians 10:7-18 (ESV): > Look at what is before your eyes. If anyone is confident that he is Christ’s, let him remind himself that just as he is Christ’s, so also are we. For even if I boast a little too much of our authority, which the Lord gave for building you up and not for destroying you, I will not be ashamed. I do not want to appear to be frightening you with my letters. For they say, “His letters are weighty and strong, but his bodily presence is weak, and his speech of no account.” Let such a person understand that what we say by letter when absent, we do when present. Not that we dare to classify or compare ourselves with some of those who are commending themselves. But when they measure themselves by one another and compare themselves with one another, they are without understanding. > > But we will not boast beyond limits, but will boast only with regard to the area of influence God assigned to us, to reach even to you. For we are not overextending ourselves, as though we did not reach you. For we were the first to come all the way to you with the gospel of Christ. We do not boast beyond limit in the labors of others. But our hope is that as your faith increases, our area of influence among you may be greatly enlarged, so that we may preach the gospel in lands beyond you, without boasting of work already done in another’s area of influence. “Let the one who boasts, boast in the Lord.” For it is not the one who commends himself who is approved, but the one whom the Lord commends.
Jeremiah 9:23-24 > 23 Thus says the Lord: “Let not the wise man boast in his wisdom, let not the mighty man boast in his might, let not the rich man boast in his riches, 24 but let him who boasts boast in this, that he understands and knows me, that I am the Lord who practices steadfast love, justice, and righteousness in the earth. For in these things I delight, declares the Lord.”
1 Corinthians 1:26-31 > 26 For consider your calling, brothers: not many of you were wise according to worldly standards, not many were powerful, not many were of noble birth. 27 But God chose what is foolish in the world to shame the wise; God chose what is weak in the world to shame the strong; 28 God chose what is low and despised in the world, even things that are not, to bring to nothing things that are, 29 so that no human being might boast in the presence of God. 30 And because of him you are in Christ Jesus, who became to us wisdom from God, righteousness and sanctification and redemption, 31 so that, as it is written, “Let the one who boasts, boast in the Lord.” > > 2 For I decided to know nothing among you except Jesus Christ and him crucified.
John Piper: > Paul means something that will change every part of your life. He means that, for the Christian, all other boasting should also be a boasting in the cross. All exultation in anything else should be exultation in the cross. If you exult in the hope of glory, you should be exulting in the cross of Christ. If you exult in tribulation because tribulation works hope, you should be exulting in the cross of Christ. If you exult in your weaknesses, or in the people of God, you should be exulting in the cross of Christ. > > Why is this the case? For this reason: for redeemed sinners, every good thing – indeed every bad thing that God turns for good – was obtained for us by the cross of Christ. Apart from the death of Christ, sinners get nothing but judgment. Apart from the cross of Christ, there is only condemnation. Therefore everything that you enjoy in Christ – as a Christian, as a person who trusts Christ – is owing to the death of Christ. And all your rejoicing in all things should therefore be a rejoicing in the cross where all your blessings were purchased for you at the cost of the death of the Son of God, Jesus Christ.