And I will put enmity between thee and the woman, and between thy seed and her Seed; He shall bruise thy head, and thou shalt bruise His heel. -Genesis 3:15

God is the great Peacemaker; and thus He is indeed the God of peace. When Satan fell, there was war in heaven. God made peace there, for He smote Satan and cast him and all his rebel hosts into eternal fire. He made peace by His might and power and majesty, for He drove him out of heaven, and expelled him by His flaming brand, never again to pollute the sacred floor of bliss, and never more to endanger Paradise by misleading his peers in heaven. So He made peace in heaven by His power. But when man fell, God made peace not by His power, but by His mercy. Man transgresses. Poor man! Mark how God goes after him to make peace with him!…Through the covenant He made with Jesus Christ from all eternity, God’s people were at peace with God. Although God saw that man shall fall; though He foresaw that His elect would with the rest depart from rectitude, and become His enemies, yet He did long before the fall draw up a covenant with Jesus, wherein Jesus stipulated that He would pay the debts of all His people, and the Father on their behalf did actually and positively forgive their sins, and justify their persons, take away their guilt, acquit them, accept and receive them unto peace with Him… Jesus was not our ambassador merely, but He was our peace; not the maker of peace merely, but our peace; and since there was a Christ before all worlds, there was peace before all worlds. Since there always will be a Christ, so there always will be peace between God and all those interested in the covenant. Oh, if we can but feel we are in the covenant, if we know we are numbered with the chosen race, and purchased with redeeming blood, then we can rejoice, because God has been to us the Restorer of breaches, the Builder of cities to dwell in, and hath given us peace which once we lost; He is the Restorer of peace.~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0049.cfm