Exodus

And thou shalt put the mercy seat above upon the ark; and in the ark thou shalt put the testimony that I shall give thee.

And there I will meet with thee, and I will commune with thee from above the mercy seat, from between the two cherubims which are upon the ark of the testimony, of all things which I will give thee in commandment unto the children of Israel.

As the Lord commanded Moses, so Aaron laid it up before the Testimony, to be kept.

The sons of Amram; Aaron and Moses: and Aaron was separated, that he should sanctify the most holy things, he and his sons for ever, to burn incense before the Lord, to minister unto him, and to bless in his name for ever.

And he put the golden altar in the tent of the congregation before the vail: