Galatians 6:10

As we have therefore opportunity, let us do good unto all men - This is the true rule about doing good. “The opportunity to do good,” said Cotton Mather, “imposes the obligation to do it.” The simple rule is, that we are favored with the opportunity, and that we have the power. It is not that we are to do it when it is convenient; or when it will advance the interest of a party; or when it may contribute to our fame; the rule is, that we are to do it when we have the opportunity. No matter how often that occurs; no matter how many objects of benevolence are presented - the more the better; no matter how much self-denial it may cost us; no matter how little fame we may get by it; still, if we have the opportunity to do good, we are to do it, and should be thankful for the privilege. And it is to be done to all people. Not to our family only; not to our party; not to our neighbors; not to those of our own color; not to those who live in the same land with us, but to all mankind. If we can reach and benefit a man who lives on the other side of the globe, whom we have never seen, and shall never see in this world or in the world to come, still we are to do him good. Such is Christianity. And in this, as in all other respects, it differs from the narrow and selfish spirit of clanship which prevails all over the world.

Especially - On the same principle that a man is bound particularly to benefit his own family and friends. In his large and expansive zeal for the world at large, he is not to forget or neglect them. He is to feel that they have special claims on him. They are near him. They are bound to him by tender ties. They may be particularly dependent on him. Christianity does not relax the ties which bind us to our country, our family, and our friends. It makes them more close and tender, and excites us more faithfully to discharge the duties which grow out of these relations. But, in addition to that, it excites us to do good to all people, and to bless the stranger as well as the friend; the man who has a different color from our own, as well as he who has the same; the man who lives in another clime, as well as he who was born in the same country in which we live.

Of the household of faith - Christians are distinguished from other people primarily by their believing the gospel, and by its influence on their lives.