'Certainly' in the Bible

It shall be, if you are not pleased with her, then you shall let her go wherever she wishes; but you shall certainly not sell her for money, you shall not mistreat her, because you have humbled her.

“You shall not see your countryman’s ox or his sheep straying away, and pay no attention to them; you shall certainly bring them back to your countryman.

You shall not see your countryman’s donkey or his ox fallen down on the way, and pay no attention to them; you shall certainly help him to raise them up.

you shall certainly let the mother go, but the young you may take for yourself, in order that it may be well with you and that you may prolong your days.