The Biblical word that's translated Redemption literally means to set something free from slavery. In John chapter 8, Jesus sheds light on our need for redemption, saying, "All who commit sin are a slave to sin." Our main problem is not physical or psychological, but spiritual. On our own, without being redeemed in Christ, we are slaves to sin. Thankfully, in Ephesians 1:7, Paul writes, "In [Jesus] we have redemption through his blood." By paying our ransom on the cross, Jesus redeems us from the Pleasure of sin (Rom. 7:18-23), the Penalty for sin (Eph. 1:7), the Power of sin (Rom. 6:12-14), and the Presence of sin (Rev. 21:1-5).