Just as the Spirit in us unfailingly produces this testimony, so the presence of this testimony or confession proves infallibly that God dwells in us by his Spirit as the apostle stated in 1 John 4:2. We confess that Jesus is the Son of God, and that the man Jesus of Nazareth was the long prophesied Messiah of the Old Testament so that in him dwells all the fullness of the Godhead bodily.