But ye are come unto mount Sion…And to Jesus the mediator of the new covenant, and to the blood of sprinkling… – Hebrews 12: 22-24

Brothers and sisters, if you have come to the blood of sprinkling, believe in the full pardon which God has given you, and in your consequent peace with God. It is a blessed word in the Creed, “I believe in the forgiveness of sins.” Do you believe in the forgiveness of sins? I have seen some of the children of God who have believed in Jesus, but it has been with a faith which did not realize the full blessing promised to it, for they were as troubled about their sins as if they had never been forgiven. Now, a man who receives a free pardon from the Queen, and goes his way out of prison, rejoices in that pardon as a reality, and therefore walks abroad without fear. You must believe in the pardon of God as a reality, and act accordingly. If He has absolved you for Jesus’ sake, then you are absolved. Why tremble like a guilty wretch waiting for the verdict? Why talk about fearing divine wrath? If you are pardoned, the deed of grace is done, and can never be undone, for the gifts and calling of God are without repentance on His part.

I want every child of God in his inmost soul to come to the blood of sprinkling by full assurance of his justification, and then to go on to enjoy constant access to the mercy seat, and communion with the Lord God. We may now with holy boldness speak with God in prayer, for the mercy seat is sprinkled with the blood. O pardoned one, be not backward to enjoy your liberty of fellowship! You are clean through the blood, and therefore you may enter into the closest communion with the divine Father, you are consecrated by the blood, and therefore you may abound in the service of your God. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1889.cfm