OET interlinear DEUT 18:21

uW Translation Notes:

Note 1 topic: figures-of-speech / quotesinquotes

תֹאמַ֖ר בִּ⁠לְבָבֶ֑⁠ךָ אֵיכָה֙ נֵדַ֣ע אֶת־הַ⁠דָּבָ֔ר אֲשֶׁ֥ר לֹא־דִבְּר֖⁠וֹ יְהוָֽה

say (Some words not found in UHB: and=because/when say in,heart_of,your how know DOM the,word which/who not he,has_spoken_it YHWH )

If it would be clearer in your language, you could translate this so that there is not a quotation within a quotation. Alternate translation: [you must ask yourselves how you will recognize a word that Yahweh has not spoken]

Note 2 topic: figures-of-speech / idiom

תֹאמַ֖ר בִּ⁠לְבָבֶ֑⁠ךָ

say (Some words not found in UHB: and=because/when say in,heart_of,your how know DOM the,word which/who not he,has_spoken_it YHWH )

Moses is using say in your heart as a common expression of his culture to mean “think” or “say to yourself.” If this phrase does not have that meaning in your language, you could use a comparable expression from your language that does have this meaning or state the meaning plainly. Alternate translation: [you must say to yourself] or [you must think]

Note 3 topic: writing-pronouns

נֵדַ֣ע

know

The pronoun we refers to the Israelites. It may be helpful to clarify this for your readers. Alternate translation: [will we Israelites recognize]