1. Man's love for a woman.
2. A woman's love for her child.
3. God's love for sinners.

1 John 4:16
God is love.

John 3:16
God so loved the world that He gave His only begotten Son that whoever believeth on Him should not perish but have Everlasting Life.

Galatians 2:20
I now live by the faith of the Son of God who loved me and gave Himself for me.

1 John 4:19
We love Him because He first loved us.

There is a vast difference between God and the Sinner.  Love must have objects to love.