Charles H. Spurgeon on Psalms 128:3

As it is visible that the good man's sons being "like olive plants round about his table", means not that they should be like the olive plants which grew round his table, it being, I presume, a thought in Bishop Patrick that will not be defended, that the Psalmist refers to a table spread in an arbour composed of young olive trees, for we find no such arbours in the Levant, nor is the tree very proper for such a purpose; so in like manner the first clause must signify, thy wife shall be in the sides, or private apartments, of thy house, fruitful as a thriving vine: the place here mentioned (the sides of the house) referring to the wife, not to the vine; as the other (the table) refers to the children, not to the olives. Nor is this a new thought, it is a remark that Musculus and other interpreters have made. The Hebrew word, translated sides, is very well known to signify the more private apartments of a house, as they have also remarked; and he that reads Dr. Shaw's description of an Eastern house, must immediately see the propriety of calling the private apartments its sides. Such a house consists of a square court, which the doctor observes, is called the midst of the house: and private apartments round it, which may as properly be called its sides in consequence: into this middle of the house, or this quadrangle, company, he tells us, are sometimes received, in which other authors tell us their wives remain concealed at such times. —Thomas Harmer, 1719-1788.