הלכה אויף דברים 17:15

Israel was enjoined with three Commandments upon entering the Land: to appoint a king, as it says, “you shall set a king over yourselves” (Deut. 17:15); to destroy the descendents of Amalek, as it says “erase the memory of Amalek” (Deut. 25:19); and build the Temple, as it says, “you shall seek His habitation, and there you will come” (Deut. 12:5).

A convert may not be appointed king, even after many generations, until one has a Jewish mother, as it says, “You cannot place over yourselves a foreign man, one who is not your brother” (Deut. 17:15). This rule is also applicable for any governing Position, and includes a commander in the Army and any officer in the Army¹Lit., officers of the fifties or tens., or even the one who is merely responsible for the reservoir which irrigates the fields. It goes without saying that a convert cannot be appointed Judge or President. All these Positions must be filled by (born) Jews, as it says, “place upon yourselves a king from those who are close to you” (ibid.). All official, governing Positions must be filled with those from among our brethren.

A woman may not be appointed queen, as it says, “upon yourselves a king” (Deut. 17:15) - a “king” and not a “queen”. A woman may not be appointed to any Position²Lit., mission. in Israel. Only may a man.