Mtn vs Mtn

Hebrews 12:18-27

Here the author compares two mountains. The first, without being names, is obviously Mt. Sinai, where the law was given to Moses. The second is Mt. Zion where the city of Jerusalem rests. The author seems to be revisiting the theme of the supremacy of Christ: Christ is superior because the mountain of the new covenant (Zion) is superior to the mountain of the old covenant (Sinai). The differences are that Mt Sinai is a physical mountain while Mt Zion is spiritual, Mt Sinai is filled with darkness, mystery and death while Mt. Zion is filled with light, joy and life.
The author makes a list of things we have come to: Mount Zion, thousands upon thousands of angels, the church of the firstborn, to God, to the spirits of the righteous (a reference to the great cloud of witnesses?), to Jesus and to the sprinkled blood that speaks a better word than the blood of Abel. This is an interesting phrase. Abel's blood cried out from the ground to the ear of God and the implied cry was a cry for justice. Justice demanded that someone pay for his murder. Jesus' blood cries out that justice has already been satisfied. When I sin and then truly repent, Jesus' blood cries out on my behalf. The word is the same (justice!) but the implications are very different.
Through the blood of Jesus the curse has been removed. I now approach God with full confidence by the blood of Jesus. My relationship to God is no longer based on law and death but on grace and life. I can join the thousands upon thousands of angels in their joyful assembly and the church of the firstborn because I am being made perfect by of the sacrifice of Christ. I claim the sprinkled blood that speaks a better word...