אַל־תֹּאמַ֣ר בִּלְבָבְךָ֗ בַּהֲדֹ֣ף יְהוָה֩ אֱלֹהֶ֨יךָ אֹתָ֥ם ׀ מִלְּפָנֶיךָ֮ לֵאמֹר֒ בְּצִדְקָתִי֙ הֱבִיאַ֣נִי יְהוָ֔ה לָרֶ֖שֶׁת אֶת־הָאָ֣רֶץ הַזֹּ֑את וּבְרִשְׁעַת֙ הַגּוֹיִ֣ם הָאֵ֔לֶּה יְהוָ֖ה מוֹרִישָׁ֥ם מִפָּנֶֽיךָ׃
Speak not thou in thy heart, after that the LORD thy God hath thrust them out from before thee, saying: ‘For my righteousness the LORD hath brought me in to possess this land’; whereas for the wickedness of these nations the LORD doth drive them out from before thee.
Shaarei Teshuvah
“Say not to yourselves, when the Lord your God has thrust them from your path, saying, ‘The Lord has enabled us to possess this land because of our virtues, etc.’ It is not because of your virtues and your rectitude, etc.” (Deuteronomy 9:4-5). We are warned with this not to imagine to ourselves that our success is from our righteousness and the rectitude of our hearts, but rather that we believe and know in our hearts that our success is from the kindness of the Most High and His great goodness - and like the matter that was said by our father, Jacob (Genesis 32:11), “I am unworthy of all the kindness and all the truth.”