The blood of Christ, shed for the forgiveness of our sins on Calvary, must ever remain before our eyes and on the forefront of our minds. The redemption of our sinful souls, the forgiveness of our sins, is by the blood of Jesus Christ (Eph. 1:7). Our reconciliation to God is won by nothing but the blood, bringing us near to God (Eph. 2:13). The blood of bulls and goats in the Temple sacrifices of the Old Covenant were nothing but a picture and symbol of the true Lamb of God who takes away the sins of the world (Jn. 1:29; Heb. 9,10).
Romans 5:8-11 is a passage I turn to quite often. It reminds me of what I once was (an enemy of God) and tells me of what I now am (a worshipper of God). It also tells me of the grounds or means by which this transition, this change, this justification and reconciliation has taken place (the blood of Christ). I was once under the just wrath of God for my sins and the sin of my first parent (Adam; cf. Rom. 5:12ff), but am now saved from the wrathful judgment to come, having been cleansed of all my filth and brought near to God by the blood of Jesus. This, at least in part, is why Peter refers to the blood of Christ as “the precious blood” (1 Pet. 1:19).
This is true of all those who have turned from their sinful ways and believed upon the gospel of Jesus Christ. You once were God’s enemy, but now, by the grace of God, you are a blood-bought worshipper of God. As blood-bought worshippers we must live each and every day standing on this truth of the gospel. Our salvation is not our doing. Our righteousness is not our own. We did not bring ourselves to God, for we were enemies of God. We could not scrub away our sin-stained guilt before God. No, all of these things were accomplished for us by the blood of Jesus Christ. When we approach the holy God, we do so on the basis that the bloody Christ has gone before us (Heb. 10:19-22)!
See a related article by Paul Tautges: Blood-Bought Worshippers