1 Corinthians 2:14

But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.

Natural man, [ psuchikos (G5591)]. As contrasted with the spiritual man, he is one in whom the animal soul [psyche] overbears his spirit, which latter is without the Spirit of God (Jude 1:19). So the animal (English version, "natural") body led by the lower nature (including both man's fallen roasts and heart), is contrasted with the Spirit-quickened body (1 Corinthians 15:44). The carnal man is one led by unregenerate appetites, or by a self-seeking mind, not necessarily one of low sensuality, but estranged from the divine life. [ psuchikos (G5591) regards the natural man in the intellectual, sarkikos (G4559), in the ethical, point of view.] 'Carnality' is the practical manifestation of the "natural" or 'animal mind;' "devilish," or 'demon-like,' 'led by an evil spirit,' is the worst type (James 3:15).

Receiveth not - accepts not, though offered to him, and 'worthy of being received by all men' (1 Timothy 1:15).

Foolishness unto him - whereas he seeks "wisdom" (1 Corinthians 1:22).

Neither can he - not only does he not, but he cannot know, and therefore has no wish to 'receive' them (Rom Neither can he - not only does he not, but he cannot know, and therefore has no wish to 'receive' them (Romans 8:7).