"so that you live and inherit the land": We are hereby taught that the appointment of judges furthers the living of Israel and their settlement on their land.
(Devarim 16:21) "You shall not plant for yourself an asheirah (a tree devoted to idolatry)": We are hereby taught that one who plants an asheirah transgresses a negative commandment. And whence is it derived that one who plants a tree in the Temple mount transgresses a negative commandment? From "You shall not plant for yourself … any tree beside the altar of the L-rd your G-d."