a man
1 John 2:4
He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
1 John 3:17
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?
not
1 John 4:12
No man hath seen God at any time. If we love one another, God dwelleth in us, and his love is perfected in us.