John continues in his letter warning believers against false prophets, saying that those who do not confess Christ, and that he has come in the flesh, are not from God. Simply put, John says that those who oppose the teaching of the apostles are of the world and should not be believed. Rather, the apostles teaching should be believed, and those who believe it are from God. This may sound self-aggrandizing, but John is one of the twelve apostles appointed by Jesus, one who walked with him, learned from him broke bread with him, who witnessed his miracles, and who saw his resurrected body. John goes on to encourage the church to love one another with the kind of love that comes from the Father, by the Spirit, through the Son.