HE is excepted who put all things under HIM

[tonychanyt]

Ps 110:

1 The LORD [Father] says to my Lord [Son]: “Sit at my [Father's] right hand, until I make your [Son's] enemies your footstool.”

That was Messianic.

1C 15:

27 For “God has put all things in subjection under his [Son] feet.” But when it says, “all things are put in subjection,” it is plain that he [Father] is excepted who put all things in subjection under him [Son].

The Father is excepted from this subjection because He is the one who grants this authority to the Son. The Father remains the ultimate source of authority. The Son’s reign is supported and empowered by the Father.

28 When all things are subjected to him [Son], then the Son himself will also be subjected to him [Father] who put all things in subjection under him [Son], that God may be all in all.

In the end, the Son will subject Himself to the Father, not as an act of inferiority but as an act of perfect unity and submission within the Godhead, ensuring that "God may be all in all."