Who shall ascend unto. It being very well known that it was of pure grace that God erected his sanctuary, and chose for himself a dwelling-place among the Jews, David makes only a tacit reference to this subject. He insists principally on the other point contained in the verse, that of distinguishing true Israelites from the false and bastards. He takes the argument by which he exhorts the Jews to lead a holy and righteous life from this, that God had separated them from the rest of the world, to be his peculiar inheritance. The rest of mankind, it is true, seeing they were created by him, belong to his empire; but he who occupies a place in the church is more nearly related to him. All those, therefore, whom God receives into his flock he calls to holiness; and he lays them under obligations to follow it by his adoption. Moreover, by these words David indirectly rebukes hypocrites, who scrupled not falsely to take to themselves the holy name of God, as we know that they are usually lifted up with pride, because of the titles which they take without having the excellencies which these titles imply, contenting themselves with bearing only outside distinctions; yea, rather he purposely magnifies this singular grace of God, that every man may learn for himself, that he has no right of entrance or access to the sanctuary, unless he sanctify himself in order to serve God in purity. The ungodly and wicked, it is true, were in the habit of resorting to the tabernacle; and, therefore, God, by the Prophet Isaiah, (Isaiah 1:12) reproaches them for coming unworthily into his courts, and wearing the pavement thereof. But David here treats of those who may lawfully enter into God's sanctuary. The house of God being holy, if any rashly, and without a right, rush into it, their corruption and abuse are nothing else but polluting it. As therefore they do not go up thither lawfully, David makes no account of their going up; yea, rather, under these words there is included a severe rebuke, of the conduct of wicked and profane men, in daring to go up into the sanctuary, and to pollute it with their impurity. On this subject I have spoken more fully on the 15th psalm. In the second part of the verse he seems to denote perseverance, as if he had said, Who shall go up into the hill of Sion, to appear and stand in the presence of God? The Hebrew word qvm, kum, it is true, sometimes signifies to rise up, but it is generally taken for to stand, as we have seen in the first psalm. And although this is a repetition of the same idea, stated in the preceding clause, it is not simply so, but David, by expressing the end for which they ought to go up, illustrates and amplifies the subject; and this repetition and amplification we find him often making use of in other psalms. In short, how much soever the wicked were mingled with the good in the church, in the time of David, he declares how vain a thing it is to make an external profession unless there be, at the same time, truth in the inward man. What he says concerning the tabernacle of the covenant must be applied to the continual government of the church.

Who shall ascend into the hill of the Lord? - Mount Zion; called the hill of the Lord, because it was the place designated for His worship, or the place of His abode. See the notes at Psalm 15:1. The idea here is, "Who shall ascend there with a view of abiding there? Who is worthy to dwell there?" The question is equivalent to asking, What constitutes true religion? What is required for the acceptable worship of God? What will prepare a person for heaven?
Or who shall stand in his holy place? - In the tabernacle, or in the place where he is worshipped. Compare the notes at Psalm 1:5. Who is worthy to stand before God? Who has the qualifications requisite to constitute the evidence of his friendship?

Who shall ascend - Who is sufficiently holy to wait in his temple? Who is fit to minister in the holy place?

Who shall ascend into the hill of the Lord?.... Though the Lord has a claim in general to the whole world, and all its fulness; yet there is a particular part of it, or spot in it, which is his special and peculiar property, and that is his church and people; for though some reference may be had, in this passage, to Mount Moriah, and the hill of Zion, on which the temple was afterwards built, and is called the hill of the Lord, where he desired to dwell, Psalm 68:15; yet the church is mystically intended, and is so called on account of its visibility, through a profession of faith in Christ, and for its immovableness, being built on him;
and who shall stand in his holy place? the same with the hill of the Lord; the temple being to be built upon it, where the Lord took up his residence, and was worshipped, and holiness becomes the house of God for evermore: the import of these questions is, who is a proper person to be an inhabitant of Zion, or a member of a Gospel church? and the answer to them is in Psalm 24:4, in which is a description much like that which is given of one hundred forty and four thousand seen with the Lamb on Mount Zion, Revelation 14:1; compare with this verse.

The form of a question gives vivacity. Hands, tongue, and heart are organs of action, speech, and feeling, which compose character.
hill of the Lord--(compare Psalm 2:6, &c.). His Church--the true or invisible, as typified by the earthly sanctuary.

The hill - Zion or Moriah, the place of God's sanctuary and special presence. Having asserted God's dominion over all mankind, he now proposes an important question, by whom God will be served, and his blessing enjoyed? Stand - To minister before him. Standing is the posture of ministers or servants. Who shall serve God, with God's acceptation. Holy place - In the place which he hath sanctified for his service.