Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed.
Peter applies Isaiah 53 to the cross: Christ carried our sins, and by His wounds we are healed, first from sin itself.
KJV21For even hereunto were ye called: because Christ also suffered for us, leaving us an example, that ye should follow his steps: 22Who did no sin, neither was guile found in his mouth: 23Who, when he was reviled, reviled not again; when he suffered, he threatened not; but committed himself to him that judgeth righteously: 24Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed. 25For ye were as sheep going astray; but are now returned unto the Shepherd and Bishop of your souls.
Peter writes to scattered Christians facing suffering, with hope that holds.
For I will restore health unto thee, and I will heal thee of thy wounds, saith the Lord; because they called thee an Outcast, saying, This is Zion, whom no man seeketh after.
Spoken to Zion when others called her an outcast nobody looked for: God’s promise to His people to heal their wounds and restore them.
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.
Isaiah’s suffering servant, fulfilled in Jesus: His wounds bring peace with God and healing at the root, first from sin (1 Peter 2:24), and in the end from every wound.
But unto you that fear my name shall the Sun of righteousness arise with healing in his wings; and ye shall go forth, and grow up as calves of the stall.
One of the last promises of the Old Testament prophets: a sunrise of righteousness, with healing in its wings (3:20 in some Catholic Bibles).
O Lord my God, I cried unto thee, and thou hast healed me.
A thank-you prayer after recovery: I cried to You, and You healed me.