'Shall' in the Bible

"Every seven years each of you must free any fellow Hebrews who have sold themselves to you. After they have served you for six years, you shall set them free." But your ancestors did not obey me or pay any attention to me.

None of the Judean remnant who have come to live in the land of Egypt will escape or survive to return to the land of Judah. Though they long to return and live there, none of them shall return except a few fugitives.'"