For in the time of trouble - When I am surrounded by dangers, or when affliction comes upon me.
He shall hide me - The word used here means to hide; to secrete; and then, to defend or protect. It would properly be applied to one who had fled from oppression, or from any impending evil, and who should be “secreted” in a house or cavern, and thus rendered safe from pursuers, or from the threatening evil.
In his pavilion - The word “pavilion” means “tent” or “tabernacle.” The Hebrew word - סכה sukâh - means properly a booth, hut, or cot formed of green branches interwoven: Jonah 4:5; Job 27:18; see the notes at Isaiah 4:6. Then it is applied to tents made of skins: Leviticus 23:43; 2 Samuel 11:11. It thus is used to denote the tabernacle, considered as the dwelling-place of God on earth, and the meaning here is, that God would hide him as it were in His own dwelling; He would admit him near to Himself; He would take care that he should be protected as if he were one of His own family; as a man protects those whom he admits to his own abode.
In the secret of his tabernacle - In the most retired and private part of His dwelling. He would not merely admit him to His premises; not only to the vestibule of His house; not only to the open court, or to the parts of His house frequented by the rest of His family; but he would admit him to the private apartments - the place to which He Himself withdrew to be alone, and where no stranger, and not even one of the family, would venture to intrude. Nothing could more certainly denote friendship; nothing could more certainly make protection sure, than thus to be taken into the private apartment where the master of a family was accustomed himself to withdraw, that he might be alone; and nothing, therefore, can more beautifully describe the protection which God will give to His friends than the idea of thus admitting them to the secret apartments of His own dwelling-place.
He shall set me up upon a rock - A place where I shall be secure; a place inaccessible to my enemies. Compare Psalms 18:1-2; Psalms 19:14 (margin); Psalms 61:2; Psalms 71:3. The meaning is, that he would be safe from all his enemies.