1 Corinthians 8:3

Love God. Obedience to the first great commandment, “Thou shalt love the Lord thy God with all thy heart,” brings real wisdom to the believer (Matt. 22:37; cf. Prov. 1:7). Where such love exists, it is seen in disinterested love for one’s neighbor (see 1 John 4:19-21).

Is known of him. That is, the man who loves God is known in a special sense by God. It may be argued that God knows all men; therefore why should Paul specify a certain class as being known by Him? But God holds close communion only with those who love Him. He responds to their love by taking them into intimate fellowship with Himself, regarding them as special friends (see John 10:14; Gal. 4:9; 2 Tim. 2:19). On the other hand, God declares He knows not those people who do not love and obey Him (see Matt. 7:23).