You should proclaim a thanksgiving hymn of praise on that day of reunion. Give thanks to Yahweh! Call on his name! Make his deeds known among the nations! Proclaim his name! Sing praises to Yahweh because he is glorious! Let the whole world know! Shout it out! Sing for joy! Isaiah maintains that the holy one of Israel would be among them at Mount Zion.
Isaiah turns to those who think only about drinking and carousing around. The first thing they think of in the morning is where their next drink is coming from. At night, they only worry about drinking wine while others played musical instruments like the lyre, harp, tambourine, and the flute. While the Israelites were going into exile, these people had no regard for the work of Yahweh and his deeds since they lacked knowledge. The nobles and the people were dying of malnutrition and thirst. However, these folks continued to play on.
Psalm 150 begins with the phrase “praise Yahweh,” another way of saying alleluia, the Hebrew “Hallelujah.” Yahweh is to be praised both in his sanctuary and in the mighty heavens. He is to be praised for his deeds and his greatness.