Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual.
Also - we not only know by the Holy Spirit, but we also speak the "things freely given to us of God" (1 Corinthians 2:12).
The Holy Spirit. So 'Aleph ('): but A B C G, Vulgate, read 'the Spirit' simply, without "Holy."
Comparing spiritual things with spiritual - expounding the Spirit-inspired Old Testament, by comparison with the Gospel revealed by the same Spirit; conversely illustrating the Gospel mysteries by comparing them with the Old Testament types. So the Greek х sungkrinein (G4793)], "comparing" (2 Corinthians 10:12). Wahl translates 'explaining (as the Greek for Hebrew potheer, Genesis 40:8, Septuagint) to spiritual (i:e., Spirit-taught) men, spiritual things (the things which we ourselves are taught by the Spirit).' Spirit-taught men alone can comprehend spiritual truths (1 Corinthians 2:6; 1 Corinthians 2:9-10; 1 Corinthians 2:14-15; 1 Corinthians 3:1). The preacher speaks to the unspiritual (1 Corinthians 3:1), in trust that the Spirit may by the Word make them spiritual. Vorstius translates 'combining spirituals with spirituals,' - i:e., spiritual things with spiritual words, which we should not do were we to use words of worldly wisdom to expound spiritual things (so 1 Corinthians 2:1; 1 Corinthians 2:4; 1 Peter 4:11). Perhaps the generality of the neuters comprehends these several notions. Combining spirituals with spirituals: implying both that spiritual things are only suited to spiritual persons (so "things" comprehended persons, 1 Corinthians 1:27), and also that spiritual truths can only be combined with spiritual (not worldly-wise) words; and lastly, spirituals of the Old and New Testaments can only be understood by mutual comparison, not by combination with worldly or natural "wisdom" (1 Corinthians 1:21-22; 1 Corinthians 2:1; 1 Corinthians 2:4-9: cf. Psalms 119:18).