New Living Translation
The lampstand will stand in the Tabernacle, in front of the inner curtain that shields the Ark of the Covenant. Aaron and his sons must keep the lamps burning in the LORD’s presence all night. This is a permanent law for the people of Israel, and it must be observed from generation to generation.

American Standard Version
In the tent of meeting, without the veil which is before the testimony, Aaron and his sons shall keep it in order from evening to morning before Jehovah: it shall be a statue for ever throughout their generations on the behalf of the children of Israel.

Berean Study Bible
In the Tent of Meeting, outside the veil that is in front of the Testimony, Aaron and his sons are to tend the lamps before the LORD from evening until morning. This is to be a permanent statute for the Israelites for the generations to come.

Douay-Rheims Bible
In the tabernacle of the testimony without the veil that hangs before the testimony. And Aaron and his sons shall order it, that it may give light before the Lord until the morning. It shall be a perpetual observance throughout their successions among the children of Israel.

English Revised Version
In the tent of meeting, without the veil which is before the testimony, Aaron and his sons shall order it from evening to morning before the LORD: it shall be a statute for ever throughout their generations on the behalf of the children of Israel.

King James Bible
In the tabernacle of the congregation without the vail, which is before the testimony, Aaron and his sons shall order it from evening to morning before the LORD: it shall be a statute for ever unto their generations on the behalf of the children of Israel.

World English Bible
In the Tent of Meeting, outside the veil which is before the testimony, Aaron and his sons shall keep it in order from evening to morning before Yahweh: it shall be a statute forever throughout their generations on the behalf of the children of Israel.

Young's Literal Translation
in the tent of meeting, at the outside of the vail, which is over the testimony, doth Aaron -- his sons also -- arrange it from evening till morning before Jehovah -- a statute age-during to their generations, from the sons of Israel.

Exodus 27:21 Additional Translations ...