1John 4:7-10 Beloved, let us love one another: for love is of God; and every one that love is born of God, and knows God. He that loves not knows not God; for God is love. In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him. Herein is love, not that we loved God, but that he loved us, and sent his Son to be the propitiation for our sins.
‘Let us love one another: for love is of God; and every one that love is born of God, and knows God’ there are many reasons for us to love others: First, to prove that we are of God (4:7); it proves sonship (4:7; 5:1-2) and proof of knowing God (4:7-8). Because God is love and we should imitate Him as children of God (4:8, 16). He has imparted love to us (4:9; Rom. 5:5) and has sent His Son to make it possible (4:9; 1Pet. 2:21) that we might live (4:9-10, 14). Because God first loved us (4:10, 19) and we’ve been loved and forgiven so much (4:10; John 3:16). It is our duty (4:11). God loved us when we were unlovable (4:11; Rom. 5:6-10). God dwells in [in union] us (4:12) and God’s love is perfected in us (4:12) because of the indwelling Spirit (4:13). We believe in love (4:16) and we dwell in God (4:16) and we are like Him (4:17). It proves we love God (4:20); it is a command (4:21; 5:2); it is natural as sons of God (5:1-2).
‘God is love’ the phrase “God is love” does not constitute the being of God. It must be understood in the same sense that we understand God is light, God is good, God is a Spirit, God is a consuming fire, and other statements about Him. In the same sense, we understand that Jesus is the way, the truth, and the life, or the door (John 10:9; 14:6). These expressions don’t do away with the reality and personality of God and Christ.
‘In this was manifested the love of God toward us, because that God sent his only begotten son into the world, that we might live through him’ the giving of God’s only begotten Son is the fullest proof of the infinite love of God and that all men can find full mercy (4:9-10; John 3:16).
‘Not that we loved God, but that he loved us’ our love to God did not induce God to give His Son to die for us. It was God’s love, not our merit, that caused Him to undertake our redemption from slavery to sin and satan, and from eternal hell (Rom. 5:5-11). ‘Propitiation for our sins’ the atoning sacrifice for sins.