1. God put all things under Christ’s feet (Eph 1:21-22)
    Isa 9:6-7, Lk 1:31-33, Phil 2:9-10, Ps 8:6, Mt 28:18, 1 Cor 15:27-28

God promised to send Christ to rule the earth. (Isa 9:6-7, Ps 8:6)

Isa 9:6 For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace.

7 Of the increase of his government and peace there shall be no end, upon the throne of David, and upon his kingdom, to order it, and to establish it with judgment and with justice from henceforth even for ever. The zeal of the Lord of hosts will perform this.

Ps 8:6 Thou madest him to have dominion over the works of thy hands; thou hast put all things under his feet:

That Christ is Jesus. (Lk 1:31-33)

Lk 1:31 And, behold, thou shalt conceive in thy womb, and bring forth a son, and shalt call his name Jesus.
32 He shall be great, and shall be called the Son of the Highest: and the Lord God shall give unto him the throne of his father David:
33 And he shall reign over the house of Jacob for ever; and of his kingdom there shall be no end.

God made all things kneel before Jesus, the Christ. (Phil 2:9-10, Mt 28:18, 1 Cor 15:27-28)

Phil 2:9 Wherefore God also hath highly exalted him, and given him a name which is above every name:

10 That at the name of Jesus every knee should bow, of things in heaven, and things in earth, and things under the earth;

Mt 28:18 And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.

1 Cor 15:27 For he hath put all things under his feet. But when he saith all things are put under him, it is manifest that he is excepted, which did put all things under him.
28 And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all.