He that doeth good is of God
Another verse from John's Epistles worth contemplating, this one from the Third Letter, 1:11.
Beloved, follow not that which is evil, but that which is good. He that doeth good is of God: but he that doeth evil hath not seen God.
It fits well with Quaker expectations of the behavior of those who encounter God through the Light, and "seen" suggests experience, a personal encounter.