God is love

So God is love, not is spite of His passion to promote His glory, but precisely because of it. What could be more loving than the infinite, holy God stooping to work for us? Yet in working for us rather than needing our work, He magnifies His own glorious self-sufficiency. It is the stream that glorifies the fullness of the spring. And the stream that flows from God is love. If He creased to seek His glory, He would be of no value to us. But, praise God, He is holy. He is righteous, and therefore, He is love.

-John Piper, Brothers We Are Not Professionals, p. 16