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.
A Song of degrees. Behold, bless ye the LORD, all ye servants of the LORD, who by night stand in the house of the LORD.
Lift up your hands in the sanctuary, and bless the LORD.
The LORD that made heaven and earth bless thee out of Zion.