The reason 1 Peter has some relevance to the topic of healing is his emphasis on suffering. He wants his readers to know that suffering is unusual for a disciple of Christ (1 Peter 4:12). This in no way means that we should create suffering for ourselves or that God takes pleasure in our suffering. A major part of this theme has to do with the suffering of Jesus who suffered the death on the cross for the unworthy and unrighteous (1 Peter 3:18).
Peter has a section in which he addresses servants suffering unjustly (1 Peter 2:18-25) and draws from Isaiah 53 and the suffering servant. Christ received blows that He did not deserve but accepted on our behalf. Peter then adds, “To this you were called, because Christ suffered for you, leaving you an example, that you should follow in his steps.” Then, Peter specifies His suffering and His response to it. He committed no sin, and no deceit was found in his mouth. ” When they hurled their insults at him, He did not retaliate; when he suffered, he made no threats. instead, he entrusted himself to him who judges justly He himself bore our sins in his body on the tree, so that we might die to sins and live for righteousness; by his wounds you have been healed. For you were like sheep going astray, but now you have returned to the Shepherd and Overseer of your souls. (I Pet. 2.21-25).  Isaiah 53.5 is quoted: “He committed no sin, and no deceit was found in his mouth.” Furthermore, the description he gives repeats the key ideas taken from Isaiah such as the statement in verse five when he writes: ” … by his wounds you have been healed” (I Pet. 2:24).
The key points taken from Peter’s treatment of suffering is: (1) Christians should not be surprised when we suffer as a Christian (1 Peter 4:16). We have heard all of our lives from older and wiser people, “Life isn’t fair.” It is intended to prepare the mind for injustices and unfair treatment, in general. However, if we suffer as a Christian, we should not only expect it but (2) we should glory in it because if Christ was willing to go to the cross for us, I should not only be willing to suffer for Him but consider it a privilege (2 Tim. 2:12, Phil. 1:29, Rom. 8:17, Phil. 3:10). (3) The example of Christ not only shows that aligning ourselves with Him will bring suffering in our lives, but we should follow Christ in our reaction to it. He endured it without complaint or retaliation.
This teaching illustrates that in terms of physical health and wellness, it is not assured because of our association with Christ. But, in terms of spiritual health, we can not only rejoice that we were counted worthy to suffer with Him (cf. Acts 5:41, 1 Peter 4:13), but we can take comfort in the spiritual blessing of patiently enduring it. Peter writes, “But the God of all grace, who hath called us unto his eternal glory by Christ Jesus, after that ye have suffered a while, make you perfect, establish, strengthen, settle you (1 Peter 5:10). Peter’s reference to Isaiah 53 does not support those under the illusion that following Christ offers the blessing of physical health. The statement that “by His stripes, we are healed” is not referring to physical healing. Peter’s emphasis, as is Isaiah’s, is that of spiritual healing. Sharing in the sufferings of Christ, and being pleasing to God is of greater significance than physical healing and well-being. This doesn’t mean that we should create suffering by obnoxious behavior just for the sake of suffering with Him. It only means that if we live for Him, we will suffer for Him and that we should not lose heart or faint when it happens. Instead, we should rejoice and be exceeding glad, for great is our reward (Matthew 5:12).
The difficulty in accepting this biblical theme is the desire to secure this physical life here on earth. When this becomes our focus and physical blessings mean more to us than the spiritual (cf. Eph. 1:3-ff), we have proven that we have not yet died to the old self. Paul writes in Colossians 3:2-4, “Set your affection on things above, not on things on the earth. For ye are dead, and your life is hidden with Christ in God. When Christ, who is our life, shall appear, then shall ye also appear with him in glory.” When Paul writes, “Ye are dead, and your life is hidden with Christ, it compares to Galatians 2:20 when Paul writes, “I have been crucified with Christ and I no longer live, but Christ lives in me. The life I now live in the body, I live by faith in the Son of God, who loved me and gave himself for me.” This is not just random teaching. It is supported in Romans 6, also. Once the old man is killed, I am hidden with Christ in God. This text has nothing to do with my physical life being hidden or protected. The entire context contrasts “things above” versus “things on the earth.” Paul had risen with Christ, who is at the right hand of God (Col. 3:1).
Carefully consider the phrase “in the heavenly places” in Ephesians and decide if Paul is talking about physical or spiritual things. Ephesians 2 explains in verses 5-6, “Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;)  And hath raised us up together, and made us sit together in heavenly places in Christ Jesus,” the same place where the spiritual blessings are (Eph. 1:3), the same realm where Christ sits at His Father’s right hand (Éph. 1:20), where principalities and powers exist (Eph. 3:10) that Paul later describes as the rulers of the darkness of this world and spiritual wickedness (Eph. 6:12). The Christian is “sitting with him” in this realm; the same realm in which I have died with him, raised with him, and hidden in Him. This has nothing to do with the physical blessings promised to me on planet earth.Â
A terrible teaching is going around all over the internet that God wants us happy, healthy, wealthy, and saved. Its grassroots are planted deeply in the realm of this world and the things on this earth (Col. 3:1-2). Too many are listening to radio and TV evangelists instead of Jesus Christ and His apostles.