דברי הימים ב כו:טו פירוש: רש״י

engines, invented by skillful men - Heb. חִשְּׁבֹנוֹת מַחֲשֶׁבֶת חוֹשֵׁב, similar to (Exod. 28:6): “expert work (מַעֲשֵׂה חֹשֵׁב.)” He made war engines with craftsmanship, such as siege mounds and battering rams, as it is written (Prov. 24:6): “For you shall wage war with strategies.”