Radak

A Psalm of David. Lord, who shall sojourn in Thy Tabernacle? And who shall dwell in Thy Holy Hill? – Thy Tabernacle: that is, the heavens, and he designates them a tent because they are spread out as a tent. And Thy Holy Hill is Mount Moriah, where the Holy House was, for it was the most glorious place in the earth. And in like manner he designates them (the heavens) a palace, as he says (Ps. 11:4): “The Lord is in His Holy Palace; the Lord, His throne is in heaven” as we have interpreted. So also, “He heard my voice out of His Palace” (ibid, 18:7). (The questions) Who shall sojourn? and Who shall dwell? have reference to the higher spiritual part (of man). He says that he who has done in his lifetime these works (about to be mentioned), his spirit shall dwell in the place of Glory after his death. And what are the works?