Ambrose of Milan
He received a response that painted him as someone driven by avarice rather than as a seeker of truth, appearing to ridicule him rather than offer guidance.
God therefore came to Balaam in the night, and said to him: If these men be come to call thee, arise and go with them: yet so, that thou do what I shall command thee.
וַיָּבֹ֨א אֱלֹהִ֥ים ׀ אֶל־בִּלְעָם֮ לַיְלָה֒ וַיֹּ֣אמֶר ל֗וֹ אִם־לִקְרֹ֤א לְךָ֙ בָּ֣אוּ הָאֲנָשִׁ֔ים ק֖וּם לֵ֣ךְ אִתָּ֑ם וְאַ֗ךְ אֶת־הַדָּבָ֛ר אֲשֶׁר־אֲדַבֵּ֥ר אֵלֶ֖יךָ אֹת֥וֹ תַעֲשֶֽׂה׃
3 Church Fathers comment on this verse
He received a response that painted him as someone driven by avarice rather than as a seeker of truth, appearing to ridicule him rather than offer guidance.
Why did God, after instructing Balaam not to proceed, subsequently command him to go (Num. 22:19-20)? The reason lies in Balaam's delusion, enticed by the allure of wealth, and his assumption that the Almighty would alter His purpose. Thus, God allowed him to go, conveying the message: "Proceed, as you desire; however, be aware that you will speak only what I dictate."
Why does God, after initially instructing Balaam not to visit the Moabites (Num. 22:12), subsequently give him permission? (v. 20). This is because God respects human free will and never imposes His will on it. Despite the Lord's command, Balaam chooses to proceed, and the Lord does not prevent him. Nevertheless, when granting the sinner his wishes, God always aligns these desires with His own profound and divine plans. Thus, after allowing Balaam to continue, the Lord emphasizes: ‘but only speak what I tell you,’ meaning that you may follow your inclination, but be aware that you will proclaim My message! (Theodoret - v. 40 on Num.).
Passages read together with this verse.