Romans 15:2

Let us be commended not by ourselves but by our neighbors, just as Paul sets his own example before us elsewhere when he says: "Just as I try to please all men in everything I do, not seeking my own advantage but that of many, that they may be saved." For nobody can build up another person if he has not first attracted him by his good life. But those who do their own will, because they are seeking their own advantage, are pleasing themselves. Paul indicates how and why we should please, so that we do not do it for worthless glory.

But what he says is this. Art thou powerful? Let the weak have trial of thy power. Let him come to know thy strength; please him. And he does not barely say please, but for his good, and not barely for his good, lest the advanced person should say, See I am drawing him to his good! but he adds, "to edification." And so if thou be rich or be in power, please not thyself, but the poor and the needy, because in this way thou wilt at once have true glory to enjoy, and be doing much service. For glory from things of the world soon flies away, but that from things of the Spirit is abiding, if thou do it to edification. Wherefore of all men he requires this. For it is not this and that person that is to do it, but "each of you." Then since it was a great thing he had commanded them, and had bidden them even relax their own perfectness in order to set right the other's weakness; he again introduces Christ, in the following words:

And to this — that we bear the weaknesses of the weak — we ought also to add this, that we should not please ourselves, but our neighbor, only in what is good, and unto edification. The vice of self-love (philautia), that is, of pleasing oneself, the prophet also blames elsewhere when he says: Woe to those who are wise in their own eyes, and learned in their own sight. Likewise, then, in this matter also we can say: Woe to those who please themselves, and seem good in their own sight. For we must first please in the sight of God, and secondly our neighbors as well. For just as the first thing is to love the Lord God, and the second the neighbor, so also the first thing is to please God, and secondly our neighbors as well. But perhaps someone may say that Paul contradicts himself in commanding us to please our neighbors, when he said elsewhere: If I pleased men, I should not be the servant of Christ. And surely it seems contrary to this sentence that each one of us should please his neighbor, and what he says elsewhere: As I also please all men in all things, not seeking what is profitable to myself, but what is profitable to many, that they may be saved. It must therefore be said in reply to these things, that it is one thing to have a zeal for pleasing men so as to seek praise from them, and another thing to have a zeal for pleasing men in this, that one's life may be blameless before men, and that all who either see or hear such a man may profit from it. There, then, men are not to be pleased, where that by which one pleases is against faith, against honesty, against religion; and therefore he says, That if I pleased men — that is, unbelieving and faithless Jews — I should not be the servant of Christ. For if Paul had wished to please the Jews, he would surely have dragged men and women bound to Jerusalem, having been sent to Damascus with letters, and he would in no way have believed the vision brought to him on the way, and the heavenly voice. But also, if anyone demands that we do something against justice, against sanctity, against the Christian rule, and unless we do this threatens hatred and enmity, then we ought to remember this saying which says: If I wished to please men, I should not be the servant of Christ. But when it is said: Let each of you please his neighbor, a necessary distinction is joined to it, which plainly shows in what one is to…