Love is the power that has drawn us as sinners to God, that has melted the hardness of our hearts, and that now constrains us to live for Him. Love is the sphere of the Christians activity. "God is love; and he who dwells in love dwells in God, and God in him." We are called to be followers, imitators of God. Therefore we have to "walk in love."
Taken from the book: "Today, Lord, I Will"