This excerpt comes from Psalms for All Seasons, commenting on Psalm 80:
The theme is clearly established by the cry for restoration and salvation repeated throughout the psalm (vv. 3, 7, 19), ending with a vow to faithful obedience (v. 18) before the last refrain.
Prayer for reflection:
Shepherd of your flock, restore your wayward people;
lead us again to green pastures and renew us beside the waters of comfort.
Because of your faithful care we worship and praise your holy name. Amen.