וַיֹּאמֶר֮ מֹשֶׁה֒ בְּזֹאת֙ תֵּֽדְע֔וּן כִּֽי־יְהוָ֣ה שְׁלָחַ֔נִי לַעֲשׂ֕וֹת אֵ֥ת כָּל־הַֽמַּעֲשִׂ֖ים הָאֵ֑לֶּה כִּי־לֹ֖א מִלִּבִּֽי׃
And Moses said: ‘Hereby ye shall know that the LORD hath sent me to do all these works, and that I have not done them of mine own mind.
Related passages and cross-references for Numbers 16:28 across the Tanakh: find parallel verses and echoes, free.