Whether soldiers that keep the night watches in an army or city, or the priests or Levites who did so in the temple; who being wearied with hard service and want of convenient rest, diligently look for and fervently desire the morning, when they may be discharged. Compare Psalms 119:148.
Related Commentaries of Psalms 130:6
Psalms 130:6
6 My soul waiteth for the Lord more than they that watch for the morning: I say, more than they that watcha for the morning.