The absolute existence, the sovereign freedom, and the omnipotence of God are the volcanic fullness that explodes in an overflow of love. The sheer magnificence of God means that he does not need us to fill up any deficiency in himself. Instead his infinite self-sufficiency spills over in love to us — to sinners — who need him, and the gift of himself in Jesus. We can bank on his love precisely because we believe in the absoluteness of his existence, the sovereignty of his freedom, and the limitlessness of his power.
John Piper, Absolute Sovereign Almighty Love