'Submitting' in the Bible

So the king told Ziba, "Pay attention! Everything that belongs to Mephibosheth is now yours!" In response Ziba said, "I'm submitting to you. Let me find favor in your sight, your majesty the king!"

“At the end of seven years each of you shall set free his Hebrew brother who has sold himself [into servitude] or who has been sold to you and has served you six years, you shall release him from [serving] you; but your forefathers did not listen [submissively] to Me or obey Me.