Ye are all children of light,.... Or enlightened persons, whose understandings were enlightened by the spirit of God, to see their lost state by nature, the exceeding sinfulness of sin, the insufficiency of their righteousness to justify them before God, the fulness, suitableness, and excellency of Christ's righteousness, the way of salvation by Christ, and that it is all of grace from first to last; to understand in some measure the Scriptures of truth, and the mysteries of the Gospel; to have knowledge of some things that are yet to be done on earth, as the bringing in of the fulness of the Gentiles, the conversion of the Jews, the destruction of antichrist, the second coming of Christ, the resurrection of the dead, the change of living saints, and the rapture of both up into the air to meet Christ, the burning of the world, and the new heavens and new earth, where Christ and his saints will dwell; as also to have some glimpse of the heavenly glory, of the unseen joys, and invisible realities of the other world: and this the apostle says of them all, in a judgment of charity, as being under a profession of the grace of God, and in a church state, and nothing appearing against them why such a character did not belong to them: and the children of the day; of the Gospel day, in distinction from the night of Jewish darkness; and of the day of grace which was come upon their souls, in opposition to the night of ignorance and infidelity, which was past; and of the everlasting day of glory, being heirs of, and having a right unto, and a meetness for the inheritance of the saints in light: we are not of the night, nor of darkness; that is not the children of darkness, as the Syriac and Arabic versions read; and the former changes the person, and reads, "ye are not the children of the night", &c. of the night of the legal dispensation, or of Gentile ignorance; or of a state of natural darkness, in unregeneracy and was no need to write unto them concerning the time and season of Christ's coming, and lays a foundation for the following exhortations.