Regarding the first half of this verse, see the comments on verses 12 and 14.
By Elijah is literally “by the hand of Elijah.”
Some languages may find Good News Translation a better model to follow since the structure is altered to put the words according to the word of the LORD which he spoke by Elijah in a more prominent position at the beginning of the verse.
Quoted with permission from Omanson, Roger L. and Ellington, John E. A Handbook on 1-2 Kings, Volume 1. (UBS Helps for Translators). New York: UBS, 2008. For this and other handbooks for translators see here .