For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifies to the purifying of the flesh: how much more shall the blood of Christ, who through the Eternal Spirit offered Himself without spot to God, purge your conscience from dead works to serve the living God?—‍Hebrews 9:13-14

Beloved Brothers and Sisters in Christ, you dwell in great nearness to God. He calls you “a people near unto Him.” His Grace has made you His sons and daughters and He is a Father unto you. In you is His Word fulfilled, “I will dwell in them and walk with them, and I will be their God, and they shall be My people.” Remember that your favored position as children of God has placed you under a peculiar discipline, for now God deals with you as with sons—and sons are under household law. The Lord will be sanctified in them that come near to Him. Special favor involves special rules. There were no strict laws made as to the behavior of the Amalekites, Amorites and Egyptians because they were far off from God and the times of their ignorance He winked at.

But the Lord set Israel apart to be His people and He came and dwelt in the midst of the congregation. The sacred tent wherein He displayed His Presence was pitched in the center of the camp and there the great King uplifted His banner of fire and cloud! Therefore, as the Lord brought the people so near to Himself, He put them under special laws, such as belong to His palace rather than to the outskirts of His dominion. They were bound to keep themselves very pure, for they bore the vessels of the Lord and were a nation of priests before Him. They ought to have been spiritually holy, and being in their childhood, they were taught this by laws referring to external cleanliness. Just as the children of Israel in the wilderness were put under stringent regulations, so do those who live near to God come under a holy discipline in the house of the Lord. “Even our God is a consuming fire.” We are not, now, speaking of our salvation, or of our justification as sinners, but of the Lord’s dealings towards us as saints. In that respect we must walk carefully with Him and watch our steps that we offend not…Our heart’s desire and inward longing is that we may never lose our Father’s smile. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1481.cfm