OET interlinear ISA 8:20

uW Translation Notes:

Note 1 topic: grammar-connect-condition-hypothetical

אִם־לֹ֤א יֹֽאמְרוּ֙ כַּ⁠דָּבָ֣ר הַ⁠זֶּ֔ה

if not speak according,the_manner the=this

Isaiah is presenting a possible condition, that there will be no hope for those who do not speak according to this word. Use a natural form in your language for introducing a condition that could happen. Alternate translation: [Whoever does not speak according to this word]

Note 2 topic: figures-of-speech / metaphor

אֵֽין־ל֖⁠וֹ שָֽׁחַר

not to=him/it dawn

Here Isaiah is speaking as if a lack of hope were the absence of dawn. Your language may have a comparable expression that you can use in your translation, or you could state the meaning plainly. Alternate translation: [there is no hope for him]

Note 3 topic: writing-pronouns

ל֖⁠וֹ

to=him/it

The pronoun him refers to whoever does not speak according to this word. It may be helpful to clarify this for your readers. Alternate translation: [for such a person]