Notice by way of encouragement that we may regard our reception of Christ’s righteousness as an installment of the final overthrow of the devil-

Unto Adam also and to his wife did the LORD God make coats of skins, and clothed them. -Genesis 3: 21 

A very condescending, thoughtful, and instructive deed of divine love! God heard what Adam said to his wife, and saw that he was a believer, and so He comes and gives him the type of the perfect righteousness, which is the believer’s portion-He covered him with lasting raiment. No more fig leaves, which were a mere mockery, but a close fitting garment which had been procured through the death of a victim; the Lord brings that and puts it on him, and Adam could no more say, “I am naked.” How could he, for God had clothed him. Now, beloved, let us take out of the promise that is given us concerning our Lord’s conquest over the devil this one item and rejoice in it, for Christ has delivered us from the power of the serpent who opened our eyes and told us we were naked, by covering us from head to foot with a righteousness which adorns and protects us, so that we are comfortable in heart, and beautiful in the sight of God, and are no more ashamed.

Therefore, brethren, be ye steadfast in resisting the evil one being strong in faith, giving glory to God.

“Tis by Thy blood, immortal Lamb,
Thine armies tread the tempter down;
“tis by Thy word and powerful name
They gain the battle and renown.
“Rejoice ye heavens; let every star
Shine with new glories round the sky;
Saints, while ye sing the heavenly war,
Raise your Deliverer’s name on high.”

~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1326.cfm