But ye are come unto mount Sion…See that ye refuse not Him that speaketh. – Hebrews 12:22, (23,24),25

The text says, “You are come.” We are not come to Mount Sinai, but we are come to Mount Zion, to angels and their God, to saints and their Mediator, and to the blood of sprinkling. This having had its share of our thoughts, we are to conclude with the question: What then? If we have come to this blood of sprinkling, what then? The answer is, “See that you refuse not Him that speaks.” Let us give to the wondrous truths revealed to us by the sacrifice of Jesus the most earnest heed, that our souls may hear and live. May the Holy Spirit enable us to hear the heavenly voice at this hour! “Faith comes by hearing,” may it come at this time by our reverently hearing the voice of the blood of sprinkling!

Count yourselves happy that you are privileged to hear of the divinely appointed way of reconciliation with God. You are come to hear, not of your sin and its doom, not of the last judgment and the swift destruction of the enemies of God, but of love to the guilty, pity for the miserable, mercy for the wicked, compassion for those who are out of the way. You are come to hear of God’s great expedient of wisdom, by which, He, by the same act and deed, condemns sin, and lets the sinner live, honors His law, and yet passes by transgression, iniquity, and sin. You are come to hear, not of the shedding of your own blood, but of the shedding of His blood who, in His infinite compassion, deigned to take the place of guilty men—to suffer, that they might not suffer, and die, that they might not die. Blessed are your ears that they hear of the perfect sacrifice! Happy are your spirits, since they are found where free grace and boundless love have set forth a great propitiation for sin! Divinely favored are you to live where you are told of pardon freely given to all who will believe on the name of the Lord Jesus, as the Lamb of God which takes away the sin of the world. ~ C.H. Spurgeon

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