There is a common antimissionary claim that Judaism has no concept of hell. Has anyone ever told you that? All we have to do to validate or invalidate this claim is go over to www.sefaria.org and perform a search on the word hell and see how often this concept is mentioned in the rabbinic literature. What we find out is that the concept of hell is mentioned throughout the Jewish literature and so this concept is extant in Judaism and there are many discussions on how the wicked go to hell and the righteous to paradise.
Search on "Hell" 361 source texts
Search on "gehenna“ 400 source texts
Search on לְגֵיהִנָּם 7,970 source texts
KJV bible search for “hell” leads to only 49 results.