2”You shall not add to the word which I am commanding you, nor take away from it, that you may keep the commandments of the LORD your God which I command you.
3”Your eyes have seen what the LORD has done in the case of Baal-peor, for all the men who followed Baal-peor, the LORD your God has destroyed them from among you.
4”But you who held fast to the LORD your God are alive today, every one of you.
9Only give heed to yourself and keep your soul diligently, so that you do not forget the things which your eyes have seen and they do not depart from your heart all the days of your life; but make them known to your sons and grandsons.
Deuteronomy 4:2-4, 9
God has always required perseverance for salvation (in regards to Hebrews 2-4).
