Then shall the trees of the wood sing for joy before Yahweh; For he comes to judge the earth.
So glorious psalm of thanksgiving and praise that David gave. The first that was sung in the establishing of the worship for the children of Israel as once again they built the tabernacle, brought the ark of the covenant, and began to establish the worship of God once more as the heart of the nation. And so David then appointed Asaph and his brethren to minister before the ark continually, as every day's work required.