'Humble' in the Bible

and My people, who are called by My Name, humble themselves, and pray and seek (crave, require as a necessity) My face and turn from their wicked ways, then I will hear [them] from heaven, and forgive their sin and heal their land.

Further, he did not humble himself before the Lord as his father Manasseh [finally] had done, but Amon multiplied his guilt and his sin.

He did evil in the sight of the Lord his God; he did not humble himself before Jeremiah the prophet, who spoke for the Lord.