Bible Verses About Spiritual Peace: Is through the atonement of Christ

But he was wounded for our transgressions, he was bruised for our iniquities; the chastisement of our peace was upon him; and with his stripes we are healed.

For he is our peace, who made both one, and brake down the middle wall of partition,

having abolished in his flesh the enmity, even the law of commandments contained in ordinances; that he might create in himself of the two one new man, so making peace;

and through him to reconcile all things unto himself, having made peace through the blood of his cross; through him, I say, whether things upon the earth, or things in the heavens.