en_tn/1ki/07/46.md

The king had cast them

Solomon would have commanded his workers to do this work. Alternate translation: "The king had his workers cast them" (See: rc://en/ta/man/jit/figs-metonymy)

plain of the Jordan

"flat land near the Jordan River"

Sukkoth ... Zarethan

These are names of cities. (See: rc://en/ta/man/jit/translate-names)