Psalm 98:1-6 and Isaiah 52:7-10

Psalm 98:1-6
1 A Psalm of David himself. Sing to the Lord a new song, for he has performed wonders. His right hand has accomplished salvation for him, with his holy arm.
2 The Lord has made known his salvation. He has revealed his justice in the sight of the nations.
3 He has remembered his mercy and his truth toward the house of Israel. All the ends of the earth have seen the salvation of our God.
4 Sing joyfully to God, all the earth. Sing and exult, and sing psalms.
5 Sing psalms to the Lord with stringed instruments, with strings and the voice of a psalmist,
6 with subtle wind instruments and the voice of woodwinds. Make a joyful noise before the Lord our king.
Isaiah 52:7-10
7 How beautiful upon the mountains are the feet of the messenger and the preacher of peace! Announcing good and preaching peace, they are saying to Zion, "Your God will reign!"
8 It is the voice of your watchmen. They have lifted up their voice. They will praise together. For they will see eye to eye, when the Lord converts Zion.
9 Be glad and rejoice together, O deserts of Jerusalem! For the Lord has consoled his people. He has redeemed Jerusalem.
10 The Lord has prepared his holy arm, in the sight of all the Gentiles. And all the ends of the earth will see the salvation of our God.