Psalms 134
The Psalter's shortest call to bless the Lord at night.
Psalm 134 is the final and shortest of the songs of ascent, calling on the servants "which by night stand in the house of the LORD" to lift their hands in the sanctuary and bless Him. It closes the sequence begun many chapters earlier, following directly after Psalms 133's picture of unity.
Lo! bless Yahweh, all ye servants of Yahweh, who stand in the house of Yahweh, by night:
Lift up your hand in holiness, and bless Yahweh.
May Yahweh, bless thee, out of Zion, even he that made heaven and earth.