▼ The preposition בְּ (bet, “by; through”) in these two lines indicates means.

▼ The twentieth saying, vv. 3–4, concerns the use of wisdom for domestic enterprises. In Prov 9:1 wisdom was personified as a woman who builds a house; but here the emphasis is primarily on the building – it is a sign of security and prosperity (C. H. Toy, Proverbs [ICC], 442). One could still make a secondary application from this line for a household or “family” (cf. NCV, which sees this as a reference to the family).