Therefore, since we receive a kingdom which cannot be shaken, let’s show gratitude, by which we may offer to God an acceptable service with reverence and awe; for our God is a consuming fire. – Hebrews 12:28-29

God has not changed. He is the same yesterday, today, and forever.
The God of Moses’ Sinai is the God of this world, this continent, and this country. Same God. Same holiness. Same wrath. Same grace.
His kingdom is unshakable, and it belongs to those of us who belong to Him through the shed blood of Jesus Christ. We who are receiving this kingdom (it will not be fully ours until the King Himself reigns on earth) cannot effectually keep it by “holding on” to grace (for that in itself would be a work). Rather, we rest as recipients of His Kingdom “clinging to” His grace as the only effectual means of gaining our inheritance.
Clinging to His grace, we then serve the Lord with all reverence and awe, fully aware of this truth, that though the world is ever-changing, He is not. Be steadfast. Persevere. Endure in hope. Worship the King who was and is and is to come!
It is not the fire that will burn us up if we do not worship, but the fire will burn us up until we worship. – Gordon MacDonald