'Tabernacle of the Testimony' in the Bible

and thou, appoint the Levites over the tabernacle of the testimony, and over all its vessels, and over all that it hath; they bear the tabernacle, and all its vessels, and they serve it; and round about the tabernacle they encamp.

and the Levites encamp round about the tabernacle of the testimony; and there is no wrath on the company of the sons of Israel, and the Levites have kept the charge of the tabernacle of the testimony.

And it cometh to pass -- in the second year, in the second month, in the twentieth of the month -- the cloud hath gone up from off the tabernacle of the testimony,