In the first lesson from Revelation 7, through the eyes of John, we see a multitude from every nation plus angels and elders praising God.
Rev. 7: “And behold, a great multitude that no one could number…standing before the throne and the Lamb…crying with a loud voice…Salvation belongs to our God who sits on the throne, and to the Lamb!
Amen! Blessing and glory and wisdom and thanksgiving and honor and power and might be to our God forever and ever! Amen.”
The psalm mentions “saints” in verses 1, 5 and 9. The saints sing to the Lord in worship (vs. 1-4) and privately in their homes (v. 5). One commentator says that in vs. 6-9 the weapons are the praises of God’s people which God uses to advance his rulership of the world.
Sing to Yahweh a new song,
his praise in the assembly of the saints.
2 Let Israel rejoice in him who made them.
Let the children of Zion be joyful in their King.
3 Let them praise his name in the dance!
Let them sing praises to him with tambourine and harp!
4 For Yahweh takes pleasure in his people.
He crowns the humble with salvation.
5 Let the saints rejoice in honor.
Let them sing for joy on their beds.
6 May the high praises of God be in their mouths,
and a two-edged sword in their hand;
7 To execute vengeance on the nations,
and punishments on the peoples;
8 To bind their kings with chains,
and their nobles with fetters of iron;
9 to execute on them the written judgment.
All his saints have this honor.