Psalm 134

Wow, those who stand by night! As David would say, "Selah -- Think about that." 

To bless the Lord in the dark night. 

Psalm 134

 ¹Behold, bless ye the LORD, all ye servants of the LORD, which by night stand in the house of the LORD.
 ²Lift up your hands in the sanctuary, and bless the LORD.
 ³The LORD that made heaven and earth bless thee out of Zion.