OET interlinear ISA 1:18

uW Translation Notes:

Note 1 topic: figures-of-speech / imperative

וְ⁠נִוָּֽכְחָ֖ה

and,let_us_argue_our_case_together

Yahweh is saying what he wants his people to do. See the discussion in the introduction to this book about this form of speech, and follow the decision of your team of how a speaker will express in this context what he wants someone to do. Alternate translation: [as I would like us to argue together]

Note 2 topic: figures-of-speech / simile

אִם־יִֽהְי֨וּ חֲטָאֵי⁠כֶ֤ם כַּ⁠שָּׁנִים֙ כַּ⁠שֶּׁ֣לֶג יַלְבִּ֔ינוּ

if are sins_of,your(pl) like,scarlet like,snow white

The point of this comparison is that just as scarlet is a deep stain that is difficult to remove, so the people’s sins seem irremovable, yet Yahweh promises to make them white like snow. If it would be helpful in your language, you could make this point explicitly. Alternate translation: [Though your sins are as indelible as scarlet dye, they will become as pure as snow]

Note 3 topic: figures-of-speech / simile

אִם־יַאְדִּ֥ימוּ כַ⁠תּוֹלָ֖ע כַּ⁠צֶּ֥מֶר יִהְיֽוּ׃

if if red like,crimson like,wool (Some words not found in UHB: come now and,let_us_argue_our_case_together says YHWH if are sins_of,your(pl) like,scarlet like,snow white if red like,crimson like,wool be )

The point of this comparison is that just as crimson is a vivid, permanent dye, so the people’s sins seem indelible, yet Yahweh promises to make them as pure as wool. If it would be helpful in your language, you could make this point explicitly. Alternate translation: [Thought they are as indelibly stained as crimson, they will become as white as wool]