'Love of God' in the Bible

But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.

But whoso hath this world's good, and seeth his brother have need, and shutteth up his bowels of compassion from him, how dwelleth the love of God in him?

In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him.

For this is the love of God, that we keep his commandments: and his commandments are not grievous.