Psa 110:1-7 (NLT)
1 A psalm of David. The LORD said to my Lord, “Sit in the place of honor at my right hand until I humble your enemies, making them a footstool under your feet.”
2 The LORD will extend your powerful kingdom from Jerusalem; you will rule over your enemies.
3 When you go to war, your people will serve you willingly. You are arrayed in holy garments, and your strength will be renewed each day like the morning dew.
4 The LORD has taken an oath and will not break his vow: “You are a priest forever in the order of Melchizedek.”
5 The Lord stands at your right hand to protect you. He will strike down many kings when his anger erupts.
6 He will punish the nations and fill their lands with corpses; he will shatter heads over the whole earth.
7 But he himself will be refreshed from brooks along the way. He will be victorious.

What an extraordinary vision—one that Paul revisits in Ephesians—the seating of Jesus far above His enemies. This is a seat of rest, where Christ reigns while the Lord of all carries out justice against those who have rejected and opposed Him. Having already participated in their defeat through His obedient endurance of the cross, Jesus rose to the place where that obedience was rewarded: complete victory over everything that once appeared to have overcome Him.
What makes this so precious for us is that this victory was never for Jesus alone. The triumph that placed Him at the Father’s side, ruling in dominance over His foes, was accomplished for us. In every victory over sin and death, His purpose was to gather us into Himself—to include us in His triumph and even in His seating. The rest that belongs to Christ while the Father deals decisively with every so-called principality is also the rest given to all who enter into the new life He has provided.
To be united with Christ in His death, burial, and resurrection is also to be united with Him in His exaltation—His seating and His total victory over every enemy. Because of this, we are no longer called to struggle or wrestle against powers that our Father is already subduing in His strength. Instead, we are invited to take our place in the rest of those who share in Christ’s victory—the rest of the victorious.