In this the children of God are manifest, &c.— All men are either the children of God, or of the devil. Here is the rule to distinguish the one from the other; not by boasting that we are the elect people of God; not by a set of notions, or barren speculations; but by our own present and personal experience and practice of righteousness, and, as another mark of our adoption, by our cordial love to all Christians. These are the marks of a true Christian; by these the true are distinguished from the false professors. How excellent must that religion be, which so much promotes genuine benevolence and universal righteousness!
Related Commentaries of 1 John 3:10
1 John 3:10
10 In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother.