Redemption is through Christ. When we say that redemption is through Christ, we understand that He was the mediator and that He took upon Himself our sins. He shall bear their iniquities. Redemption is in Christ. Eschatological aspect of redemption.
Redemption has an eschatological aspect also which transcends time.
Redemption of the body. Propitiation and Expiation. Propitiation, and expiation, also called atonement, are very similar concepts. The redemptive act is propitiation and atonement. The believer appropriates the propitiation and expiation of the redemptive work through faith.