What is love? What shall I say of it, or how shall I in words express its nature? It is the sweetness of life; it is the sweet, tender, melting nature of God, flowing up through his seed of life into the creature, and of all things making the creature most like unto himself, both in nature and operation. It fulfils the law, it fulfils the gospel; it wraps up all in one, and brings forth all in the oneness. It excludes all evil out of the heart, it perfects all good in the heart. A touch of love doth this in measure; perfect love doth this in fullness.

Isaac Penington, 1663