3 For I could wish that I myself were accursed—cut off from Christ—for the sake of my people, my fellow countrymen, 4 who are Israelites. To them belong the adoption as sons, the glory, the covenants, the giving of the law, the temple worship, and the promises. 5 To them belong the patriarchs, and from them, by human descent, came the Christ, who is God over all, blessed forever! Amen. 6 It is not as though the word of God had failed. For not all those who are descended from Israel are truly Israel, 7 nor are all the children Abraham’s true descendants; rather “through Isaac will your descendants be counted.” 8 This means it is not the children of the flesh who are the children of God; rather, the children of promise are counted as descendants.

All of the Jewish people, even sinners and those who are liable to be executed with a court-imposed death penalty, have a share in the World-to-Come, as it is stated: “And your people also shall be all righteous, they shall inherit the land forever; the branch of My planting, the work of My hands, for My name to be glorified” (Isaiah 60:21). And these are the exceptions, the people who have no share in the World-to-Come, even when they fulfilled many mitzvot: One who says: There is no resurrection of the dead derived from the Torah, and one who says: The Torah did not originate from Heaven, and an epikoros, who treats Torah scholars and the Torah that they teach with contempt. Rabbi Akiva says: Also included in the exceptions are one who reads external literature, and one who whispers invocations over a wound and says as an invocation for healing: “Every illness that I placed upon Egypt I will not place upon you, for I am the Lord, your Healer” (Exodus 15:26). By doing so, he shows contempt for the sanctity of the name of God and therefore has no share in the World-to-Come. Abba Shaul says: Also included in the exceptions is one who pronounces the ineffable name of God as it is written, with its letters.