Charles Ellicott Commentary 1 Corinthians 15:27

"For, He put all things in subjection under his feet. But when he saith, All things are put in subjection, it is evident that he is excepted who did subject all things unto him." — 1 Corinthians 15:27 (ASV)

For he hath put all things under his feet. 1 Corinthians 15:26 is a parenthesis, and the “for” with which this verse commences goes back to 1 Corinthians 15:25. The connection is, Christ must reign until he has put all enemies under his feet. Christ must triumph, for according to the statement in Psalm 8:6 , God has put all things under man, and in a higher sense under the Son of Man. (For a similar application of an Old Testament statement regarding man to Christ as the Son of Man, see Matthew 21:16; Hebrews 2:7.) But when God says that all things are put under Him, He evidently is excepted, who put all things under Him. This leads logically to the complete triumph of God the Father, expressed in the following verse, which is an expansion of 1 Corinthians 15:24, for which see the note there.