'Cover' in the Bible

And the gate of the fountain hath Shallum son of Col-Hozeh, head of the district of Mizpah, strengthened: he doth build it, and cover it, and set up its doors, its locks, and its bars, and the wall of the pool of Siloah, to the garden of the king, and unto the steps that are going down from the city of David.

And cover not their iniquity, and let not their sin be blotted out from before thee: for they have provoked thee to anger before the builders.