Christ as the Redeemer (v. 20) saves us from our sins, iniquities, and transgressions, whereas Christ as the all-inclusive life-giving Spirit (1 Cor. 15:45) is for our breathing (John 20:22), and Christ as the word (Rev. 19:13) is for our feeding (Matt. 4:4; John 6:57, 63) and our speaking (1 Cor. 14:31; Eph. 4:29).
