40. valley of … dead—Tophet, where the bodies of malefactors were cast (Isa 30:33), south of the city.
fields … Kidron—so 2Ki 23:4. Fields in the suburbs reaching as far as Kidron, east of the city.
horse gate—Through it the king's horses were led forth for watering to the brook Kidron (2Ki 11:16; Ne 3:28).
for ever—The city shall not only be spacious, but both "holy to the Lord," that is, freed from all pollutions, and everlasting (Joe 3:17, 20; Re 21:2, 10, 27).