This is how God showed his love among us: He sent his one and only Son into the world that we might live through him. This is love: not that we loved God, but that he loved us and sent his Son as an atoning sacrifice for our sins.
In the very passage quoted above from 1 John 4, we read more than once that “God is love.” The God who is love shows to us and to the world a cross-shaped love, that is, the love of the Cross. In Jesus, God’s Son, is the ultimate expression of love. God took upon God’s Self all of our evil, all of our sin, and in love laid down his life for us, yes, for the world.
We receive that love so as to enjoy it, live in it, and from that actually be a manifestation of that love of God in Christ to the world. It is not us, but Christ living in us (Galatians 2:20) who enables us so to live, but mysteriously this becomes (or can and should become) a part and at the heart of who we are. As Paul said, he wanted to know Christ and the power of his resurrection, and participation in his sufferings, even becoming like him in his death (Philippians 3). Christ’s love compelled him in his mission and life (2 Corinthians 5).
We want to enjoy every aspect of what love is, of course not outside of what God commands. But above all, our focus is on the Love of all loves, found in God, and on the Cross, in which love is given its supreme and final expression in this world. The love of God to bring us into no less than the life and love of the Trinity. In and through Jesus.