He turned him from his path
Cause him to deviate from the path. In the question: Cause him to change his behavior.
("And the donkey saw the angel of the Lord...and the donkey turned out of the way and went into the field. And Balaam went with the donkey to turn her into the way" - Deuteronomy 22:23, and so: "And this wise man is wise to turn away from me the way of the sanctuary to go after the way of the Lord" - Sha'i Agnon/ Sifurei HaBe'Sh'at, Haneder)
Translation
Expression (Hebrew)
הִטָּה אוֹתוֹ מִדַּרְכּוֹ
Definition (Hebrew)
גָּרַם לוֹ לִסְטוֹת מֵהַדֶּרֶךְ. בְּהַשְׁאָלָה: גָּרַם לְשִׁנּוּי בְּהִתְנַהֲגוּתוֹ.
("וַתֵּרֶא הָאָתוֹן אֶת מַלְאַךְ ה'...ֹ וַתֵּט הָאָתוֹן מִן הַדֶּרֶךְ וַתֵּלֶךְ בַּשָּׂדֶה וַיַּךְ בִּלְעָם אֶת הָאָתוֹן לְהַטֹּתָהּ הַדָּרֶךְ"- בְּמִדְבַּר כב כג, וְכֵן:"וְהָעֶלֶם הַלָּזֶה חָכָם הוּא לְהָרַע לְהַטּוֹת מִנִּי דֶּרֶךְ הַקֹּדֶשׁ לָלֶכֶת אַחַר הַתֹּהוּ"- שַׁ"י עַגְנוֹן/ סִפּוּרֵי הַבֵּעשְׁ"ט, הַנֵּדֶר)