OET interlinear 1 KI 18:21

uW Translation Notes:

Note 1 topic: figures-of-speech / rquestion

עַד־מָתַ֞י אַתֶּ֣ם פֹּסְחִים֮ עַל־שְׁתֵּ֣י הַ⁠סְּעִפִּים֒

until when(q) (Some words not found in UHB: and,he_drew_near ʼĒliy^yāh to/towards all/each/any/every the,people and=he/it_said until when(q) you(pl) waver on/upon/above/on_account_of//he/it_went_in two(fd) the,crutches if YHWH the=ʼElohīm go after,him and=if (the),Baal go after,him and=not answer the,people DOM=him/it message )

Elijah is using the question form to challenge and rebuke the people of Israel. If a speaker of your language would not use the question form for that purpose, you could translate this as a statement or as an exclamation. Alternate translation: [You have been limping on two opinions for long enough!] or [You should not be limping on two opinions any longer!]

Note 2 topic: figures-of-speech / metaphor

אַתֶּ֣ם פֹּסְחִים֮ עַל־שְׁתֵּ֣י הַ⁠סְּעִפִּים֒

(Some words not found in UHB: and,he_drew_near ʼĒliy^yāh to/towards all/each/any/every the,people and=he/it_said until when(q) you(pl) waver on/upon/above/on_account_of//he/it_went_in two(fd) the,crutches if YHWH the=ʼElohīm go after,him and=if (the),Baal go after,him and=not answer the,people DOM=him/it message )

Elijah is speaking as if the people were actually limping on these opinions, shifting their weight back and forth between them as a limping person does with his legs. He means that they are being indecisive about whether to worship Yahweh or Baal. Your language may have a comparable expression that you can use in your translation, or you could state the meaning plainly. Alternate translation: [will you be wavering back and forth between two faiths]

Note 3 topic: figures-of-speech / idiom

לְכ֣וּ אַחֲרָ֔י⁠ו & לְכ֣וּ אַחֲרָ֑י⁠ו

go after,him & go after,him

See how you translated the similar expression in 18:18. Alternate translation: [worship him … worship him]

Note 4 topic: figures-of-speech / metonymy

וְ⁠לֹֽא־עָנ֥וּ הָ⁠עָ֛ם אֹת֖⁠וֹ דָּבָֽר

and=not answer the,people DOM=him/it (Some words not found in UHB: and,he_drew_near ʼĒliy^yāh to/towards all/each/any/every the,people and=he/it_said until when(q) you(pl) waver on/upon/above/on_account_of//he/it_went_in two(fd) the,crutches if YHWH the=ʼElohīm go after,him and=if (the),Baal go after,him and=not answer the,people DOM=him/it message )

Here, a word represents something the people might have said by using words. If it would be helpful in your language, you could use an equivalent expression or plain language. Alternate translation: [But the people did not say anything in response to him]