1 Corinthians 8:3 - Ellicott's Commentary On The Whole Bible

If any man love God. — This explains the nature of the love which edifies. Love to God, and therefore love to man, builds up the whole Christian communion. The man gets outside the mere selfish thought of his own indulgence in his liberty. There is the under-thought in these words (“the same is known of Him”) of the identity between knowing God and being known of Him. The latter is the source of the former. Like water rising to its own level, the love and the knowledge rise as high as their source.