כִּֽי־בַיּ֥וֹם הַזֶּ֛ה יְכַפֵּ֥ר עֲלֵיכֶ֖ם לְטַהֵ֣ר אֶתְכֶ֑ם מִכֹּל֙ חַטֹּ֣אתֵיכֶ֔ם לִפְנֵ֥י יְהוָ֖ה תִּטְהָֽרוּ׃
For on this day atonement shall be made for you to cleanse you of all your sins; you (16-30) shall be clean before the LORD
For on this day atonement shall be made for you to cleanse you of all your sins; you (16-30) shall be clean before the LORD
We see in this possum it says the word כל but it seems like this word is unnecessary since wouldn't we assume it is all our sins even if it did not say all. Ibn Ezra comes and explains that the word חטא is a more general category that could mean unintentional actions in addition to intentional thoughts and actions so it uses the word to clarify that it is all kinds of sins.
How else can this passuk be explained?
Where else in the Torah does it seem a word is unnecessary but comes to teach us something?
Is there any other places where it says כל, but it’s obvious that it would include all?