3 David prepared iron in abundance for the nails for the doors of the gates, and for the couplings; and brass in abundance without weight;
*Minor differences ignored. Grouped by changes, with first version listed as example.
For the joinings - i. e., the girders, or cramps - pieces of iron to be used in joining beams or stones together.
Irons - for the nails, etc. - Iron for bolts, bars, hinges, etc., etc.
And David prepared iron (c) in abundance for the nails for the doors of the gates, and for the joinings; and brass in abundance without weight;
(c) That is, which weighed fifty shekels of gold, (2-Chronicles 3:9).
And David prepared iron in abundance for the nails for the doors of the gates, and for the joinings,.... Great plenty of iron to make nails of for joining the boards together, of which the doors and gates were to be made, and for the fastening of the hinges of them:
and brass in abundance without weight; for making the altar of brass, and the laver of brass, and other vessels. Brass was much used by the Heathens in sacred things, as Macrobius (p) observes.
(p) Saturnal. l. 5. c. 19.
Iron and brass he prepared in abundance: the iron for the nails of the doors, i.e., for the folding-doors of the gates, i.e., partly for the pivots (Zapfen) on which the folding-doors turned, partly to strengthen the boards of which doors were made; as also for the מחבּרות, literally, things to connect, i.e., properly iron cramps.
*More commentary available at chapter level.