"The wicked shall return to Sheol." Rabbi Elazar said, "All nations have no share in the World to Come." Rabbi Yehoshua said to him, "You would have said well if you had stated 'All nations that are silent have a beautiful share.' And what is the scriptural verse that speaks of the forgetfulness of God [in regards to the nations]? 'Be like the chaff of the nations' [Psalms 83:14]. Rabbi Nechemia said, 'Every word that was not given to Moses at Sinai was given to him [i.e. God] in the end [i.e. later]. For example, [Genesis 28:10] 'And Jacob went out from Beer-Sheba' [literally 'And he went out to Charan' (a different location)]. The Scriptural verse [thus] alludes to Sheol. Rabbi Abba bar Zavdi said [this refers to] the lowest level of Sheol."
Where Do the Wicked Go After They Die
Midrash Tehillim 9:18