Verse 16.--And we have known and believed. Whether we love God or not is a matter of knowledge. That God loved us we believed when we heard the message of love his inspired apostles brought to us. And keeping the divine model before, and observing all God's requirements, increase our confidence to such an extent that it is exalted in us to the height of personal knowledge. God being love, and loving God, that love binds us to God. So of a truth we dwell in God and he in us.