וַיֹּ֨אמֶר בָּלָ֜ק אֶל־בִּלְעָ֗ם הֲלֹא֩ שָׁלֹ֨חַ שָׁלַ֤חְתִּי אֵלֶ֙יךָ֙ לִקְרֹא־לָ֔ךְ לָ֥מָּה לֹא־הָלַ֖כְתָּ אֵלָ֑י הַֽאֻמְנָ֔ם לֹ֥א אוּכַ֖ל כַּבְּדֶֽךָ׃
And Balak said unto Balaam: ‘Did I not earnestly send unto thee to call thee? wherefore camest thou not unto me? am I not able indeed to promote thee to honour?’
Read halakhic rulings (Jewish law) on Numbers 22:37: and classical halakhic sources.