Tomorrow's epistle reading is confrontational. To Christians who argue the ins and outs of predestination, to Christians who believe or are toying with believing that God is a universalist who will save everyone, no matter what, Hebrews 12:18-29 cuts through to the bone (see Hebrews 4:12).
"See that you do not refuse the one who is speaking; for if they did not escape when they refused the one who warned them on earth, how much less will we escape if we reject the one who warns from heaven!" (12:25)
The writer is quite clear. Nothing is predetermined around our individual response to the voice of God. We (good readers of Hebrews) may yet be found to have refused God. Nothing is safe about refusing God: there is no escape for those found to have rejected God, such will be found out. God is a 'consuming fire' (12:29) and we should dread what that consumption will do to us if we reject God.
But we do not need to be afraid. The 'sprinkled blood' of Jesus 'speaks a better word than the blood of Abel' (12:24).
Thanks be to God.