What does the Bible say about redemption through the blood?

The principle of redemption by blood is integral to God's plan of salvation, as seen in Exodus 13:13, where every firstborn was to be redeemed with a lamb. This profound symbolism asserts that like the stubborn ass needing redemption, humanity cannot save itself without divine intervention. The blood of Christ, the ultimate Passover lamb, is what God sees to pass over our sins. His sacrifice does not merely make salvation possible but secures it for those He has chosen, affirming that all who believe in Christ are redeemed completely by His shed blood.