Now bless the Lord, all you servants of the Lord who stand in the Lord’s house at night!
Psalm 134:1 (CSB)
In the context of the Old Testament, this verse speaks directly to the temple priests who served God night and day. In this sense, the psalmist asks them to bless the Lord, which is a form of worship. The services they offer in the temple might well be in line with the directives of God himself, which is probably why the author is asking them to go beyond rituals to bless God's name. The word “Bless” in this verse can be translated as “Praise”.
Knowing that most of the services offered were for the benefit of the people, it is then possible to believe that this exhortation to praise God was addressed indirectly to the people. Even today, years later, this verse continues to exhort our leaders to offer true praise and worship to the Lord. It also speaks to us, for whom Sunday services are intended.
We have far more reason to offer services of praise and thanksgiving to the Lord than the people of Israel. As we live under grace and the blood of Jesus covers us, they were to respect and obey the law without breaking a single one, because God took his words very seriously. They would pay the consequences with their lives if they failed. Don't you think this verse has more value for you today, for whom Christ intercedes day and night?
May the grace and peace of God be with you all.