Wesley's Explanatory Notes

Behold, bless ye the LORD, all ye servants of the LORD, which by night stand in the house of the LORD.

Servant — Peculiarly so called, priests and Levites.

Night — Not only by day, but also by night, when their watch was more necessary.

Stand — Serve or minister.

The LORD that made heaven and earth bless thee out of Zion.

Thee — Thee whosoever thou art who dost faithfully perform the duty here commanded.