When God gave the Law to Moses at Mt. Sinai, the mountain shook. People down below were afraid. Moses himself trembled.
Then later on on of the Prophets announced that God the Lord said: ‘One more time I will shake the earth’. What time is this? The Law and the Old Covenant ended. The New Covenant came and instead of Law and terror at a mountain shaking, believers of all nations have come to Mt. Zion We have come not are coming. We are in the heavenly kingdom of our Lord and Savior kingdom of God and of Christ.