'Cover' in the Bible

The Lord said to Moses, Say to Aaron, your brother, that he may not come at all times into the holy place inside the veil, before the cover which is on the ark, for fear that death may overtake him; for I will be seen in the cloud on the cover of the ark.

And let him take some of the blood of the ox, shaking drops of it from his finger on the cover of the ark on the east side, and before it, seven times.

Then let him put to death the goat of the sin-offering for the people, and take its blood inside the veil and do with it as he did with the blood of the ox, shaking drops of it on and before the cover of the ark.