When one says that one of the attributes of God is Love I believe one is approaching the central fact of God’s existence, and ours. “God is love,” John tells us (1 John 4:8 and 1 John 4:16) and “whoever abides in love abides in God” (John 4:16). When asked what the greatest commandment was, Jesus replied:
You shall love the Lord your God with all your heart and with all your soul and with all your mind. This is the great and first commandment. And a second is like it: You shall love your neighbor as yourself. On these two commandments depend all the Law and the Prophets. (Mt. 22:37-40)
Love is the unifying principle. When the omnipresence of God is referred to, it is in love that God is encountered everywhere. The image of God in man is the intended love relationship between the Creator and His creatures, and the phenomenon we refer to as “the Fall” is in fact the act of man turning away from that intended love relationship.[1] God expresses His love for his creatures by sacrificing himself to atone for their sin and restore the intended relationship (John 3:16), and thus sets the standard for how His creatures are to love Him, each other, and the world (John 13:34, 15:9, 15:12). In other words, love finds its fullest expression in self-sacrifice for the other, even the enemy (Mt. 5:44).
[1] Emil Brunner, Christian Doctrine of Creation and Redemption, (Philadelphia: The Westminster Press, 1952), 58-59.