Deuteronomy 17:14-15

Thomson(i) 14 And when thou art come to the land which the Lord thy God giveth thee, and hast taken possession of it, and dwelt therein, if thou shouldst say, I will set a chief over me, as the other nations around me do; 15 thou shalt surely set, as chief over thee, him whom the Lord thy God shall chuse. Thou shalt appoint one of thy brethren chief over thee. Thou shalt not be at liberty to set a stranger over thee, because he is not thy brother.