“But if we walk in the light, as He is in the light we have fellowship with one another, and the blood of Jesus Christ cleanses us from all our sins” 1 John 1:7
The blood of Jesus is able to cleanse us from all our sins and take away the effect of sin; what do I mean? Your sins may be forgiven but sometimes guilt, shame, regret, etc lingers with you so
We need to come to the knowledge that the blood cleanses us and sanctifies us. The Levites were cleansed but not sanctified hence they could only enter the tabernacle but not enter into the holy place; only the Priest could enter. The good news is that we can now come boldly into His throne; the blood of Jesus has qualified us!