Hebrews 12:27-29

Now this phrase “once and for all” clearly indicates the final removal of things that are shaking, that is, the old order, so only what is unshakable will remain. Since we are receiving our rights to an unshakable kingdom we should be extremely thankful and offer God the purest worship that delights his heart as we lay down our lives in absolute surrender, filled with awe. For our God is a holy, devouring fire!