Galatians 1:8

We. Evidently Paul, and possibly his associates mentioned in v. 2. Paul commonly uses the first person plural pronoun when referring to himself alone.

Angel from heaven. Paul could scarcely make a stronger affirmation of certainty with respect to the gospel as he had presented it. It was incredible that an angel from heaven should lead men astray.

Than that. Or, “contrary to.” “Any other gospel,” that is, a gospel of a different kind, would be contrary to the true gospel. God does not change, nor does He contradict Himself.

Accursed. Gr. anathema, “a cursed thing,” that is, devoted to vengeance, here, the vengeance of God. In the LXX anathema is used for the Hebrew noun cherem, related to the verb charam, and meaning a person or thing consigned to destruction (see on 1 Sam. 15:3). Spiritually it denotes the state of one who is alienated from God by sin. As used in the NT it does not refer to ecclesiastical excommunication as practiced in later centuries, but no doubt did include some form of separation from the church. In the case of the immoral man of the Corinthian church, Paul had advised that he be removed from the church (1 Cor. 5:2).