'Shall' in the Bible

But Ruth said, “Do not urge me to leave you or turn back from following you; for where you go, I will go, and where you lodge, I will lodge. Your people shall be my people, and your God, my God.

Also you shall purposely pull out for her some grain from the bundles and leave it that she may glean, and do not rebuke her.”

Then Naomi her mother-in-law said to her, “My daughter, shall I not seek security for you, that it may be well with you?

It shall be when he lies down, that you shall notice the place where he lies, and you shall go and uncover his feet and lie down; then he will tell you what you shall do.”

Moreover, may your house be like the house of Perez whom Tamar bore to Judah, through the offspring which the Lord will give you by this young woman.”