An exhortation to bless God, 1-3.
1 [A Song of Degrees.] Behold, bless the LORD, all servants of the LORD, who by night stand in the house of the LORD.
2 Lift up your hands in the sanctuary and bless the LORD.
3 May the LORD who made heaven and earth bless you out of Zion.
Matthew Henry Commentary - Psalms, Chapter 134