en_tn/1ki/18/32.md

in the name of Yahweh

"Name" here is a metonym for honor and reputation. Possible meanings are 1) "to honor Yahweh" or 2) "with the authority of Yahweh." (See: rc://en/ta/man/translate/figs-metonymy)

trench

a small waterway to hold water

two seahs of seeds

A seah is a unit of volume equal to about 7.7 liters. AT: "about 15 liters of seeds" (See: rc://en/ta/man/translate/translate-bvolume)