Charles H. Spurgeon on Psalms 90:1

Lord, thou hast been our dwelling place, etc. In this first part the prophet acknowledgeth that God in all times, and in all ages hath had a special care of his saints and servants, to provide for them all things necessary for this life; for under the name of "dwelling place", or mansion house, the prophet understandeth all helps and comforts necessary for this life, both for maintenance and protection. For the use of such houses was wont to be not only to defend men from the injury of the weather, and to keep safely, within the walls and under the roof all other things necessary for this life, and to be a place of abode, wherein men might the more commodiously provide for all other things necessary, and walk in some calling profitable to their neighbour and to the glory of God; but also to protect them from the violence of brute beasts and rage of enemies. Now the prophet herein seems to note a special and more immediate providence of God: (for of all kind of people they seemed to be most forsaken and forlorn); that whereas the rest of the world seemed to have their habitations and mansions rooted in the earth, and so to dwell upon the earth; to live in cities and walled towns in all wealth and state; God's people were as it were without house and home. Abraham was called out of his own country, from his father's house, where no doubt he had goodly buildings, and large revenues, and was commanded by God to live as a foreigner in a strange country, amongst savage people, that he knew not; and to abide in tents, booths, and cabins, having little hope to live a settled and comfortable life in any place. In like manner lived his posterity, Isaac, Jacob, and the twelve patriarchs, wandering from place to place in the land of Canaan; from thence translated into the land of Egypt, there living at courtesy, and as it were tenants at will, and in such slavery and bondage, that it had been better for them to have been without house and home. After this for forty years together (at which time this Psalm was penned) they wandered up and down in a desolate wilderness, removing from place to place, and wandering, as it were in a maze. So that of all the people of the earth, God's own people had hitherto lived as pilgrims and banished persons, without house or home; and therefore the prophet here professes that God himself more immediately by his extraordinary providence, for many ages together had protected them, and been as it were a mansion house unto them; that is, the more they were deprived of these ordinary comforts of this life, the more was God present with them, supplying by his extraordinary and immediate providence what they wanted in regard of ordinary means. The due consideration of this point may minister matter of great joy and comfort to such children of God as are thoroughly humbled with the consideration of man's mortality in general, or of theirs whom they rely and depend upon in special. —William Bradshaw, 1621.