[Commenting on John 14:20:]
“By faith you also come to be in Me with your death, sin, and every trouble. If you are sinful in yourselves, you are justified in Me; if you feel death in you, you have life in Me; if you have strife in you, you have peace in Me; if you stand condemned on your own account, you are blessed and saved in Me.” For, my dear man, where am I if I am a Christian? Nowhere else than where Christ is. But where else is He but in heaven, in eternal life, joy, and bliss? And He, of course, will not be condemned to death as a sinner any longer. Since no sin can accuse Him, no devil can damn Him, no death can consume Him, no hell can devour Him, I must remain undamned and undevoured; for I am in Him. “Consequently, sin, death, and every trouble in you are gone. For all this I destroy in Myself.” It cannot abide in Him, since He is and remains in the Father. And it can have no power in us either, because we are in Him.
…Christ is in us, and…we are in Him. The one points upward; the other, downward. For we must first be in Him with all our being, with our sin, our death, and our weakness; we must know that we are liberated from these before God and are redeemed and pronounced blessed through this Christ. … We must be His own, being baptized in His name and then having taken the Sacrament. Thereby sin, an evil conscience, death, and the devil vanish; and we can say: “I know of no death and no hell. If there is death anywhere, let it first consume and kill my Christ. If hell amounts to anything, let it devour the Savior. If sin, the Law, and conscience can condemn, let them accuse the Son of God. … But since the Father and Christ remain alive, I , too, will remain alive; since He remains undefeated by sin and the devil, I, too, will remain undefeated. For I know that just as Christ is in the Father, so I am in Christ.” …
Just as I am in Christ, so Christ, in turn, is in me. … Now He also manifests Himself in me and says, “Go forth, preach, comfort, baptize, serve your neighbor, be obedient, be patient. I will be in you and will do all this. Whatever you do will be done by Me. Just be of good cheer, be bold, and trust in Me.” [AE 24:141-143]