'Ark of the Covenant' in the Bible

In that time Jehovah separated the tribe of Levi, to lift up the ark of the covenant of Jehovah, to stand before Jehovah to serve him, and to praise in his name, even to this day.

And Moses will write this law and will give it to the priests, the sons of Levi, lifting up the ark of the covenant of Jehovah, and to all the old men of Israel.

And Moses will command the Levites lifting up the ark of the covenant of Jehovah, saying,

Take the book of this law and put it at the side of the ark of the covenant of Jehovah your God, and it was there for a witness against thee.