Today God does not want people put to death for not entering into the covenant, instead He continues to woo them with His love, His grace and His discipline. What is our prayer focus is that Israel will have that same zeal and commitment. As long as there is life and breath there is hope, but eternal separation does come to those who refuse His covenant and forgiveness of sin.
2 Chronicles 15:12-15: Then they entered into a covenant to seek the Lord God of their fathers with all their heart and with all their soul; and whoever would not seek the Lord God of Israel was to be put to death, whether small or great, whether man or woman. Then they took an oath before the Lord with a loud voice, with shouting and trumpets and rams’ horns. And all Judah rejoiced at the oath, for they had sworn with all their heart and sought Him with all their soul; and He was found by them, and the Lord gave them rest all around.
Jeremiah 31:31-34: “Behold, the days are coming, says the Lord, when I will make a new covenant with the house of Israel and with the house of Judah— not according to the covenant that I made with their fathers in the day that I took them by the hand to lead them out of the land of Egypt, My covenant which they broke, though I was a husband to them, says the Lord. But this is the covenant that I will make with the house of Israel after those days, says the Lord: I will put My law in their minds, and write it on their hearts; and I will be their God, and they shall be My people. No more shall every man teach his neighbor, and every man his brother, saying, ‘Know the Lord,’ for they all shall know Me, from the least of them to the greatest of them, says the Lord. For I will forgive their iniquity, and their sin I will remember no more.”