Thematic Bible: What to try

Dear friends, do not believe every spirit, but test the spirits [to determine] if they are from God, because many false prophets have gone out into the world. By this you know the Spirit of God: every spirit that confesses Jesus Christ has come in the flesh is from God, and every spirit that does not confess Jesus is not from God, and this is the [spirit] of the antichrist, [of] which you have heard that it is coming, and now it is already in the world.

Why should any living person complain about his sin? Let us test and examine our ways; let us return to Yahweh.