Midrash su Deuteronomio 12:10

R. Jose said: "All that is said in the chaptor (I Sam. 8) concerning a king, the king is allowed to do." R. Juda, however, said: "The whole portion is said merely to frighten them, as the expression, to set a king over thee — i.e., that the fear of the king shall always be upon you." And thus R. Juda used to say: "There are three positive commandments which Israel was commanded at the time they entered Palestine, viz.: They shall appoint a king; they shall destroy the descendants of Amalek; and they shall build a Temple." R. N'hurai says: "The whole portion was said only because they murmured against Samuel, requesting a king, as it is said (Ib., ib. 14) And thou sayest, I wish to set a king over me," etc. We are taught in a Baraitha: R. Eliezer says: "The elders of that generation rightly asked Samuel for a king, as it is said (I Sam. 8, 5) Appoint for us a king to judge us like all the nations. But the commoners who were among them perverted the statement, as it is said (Ib., ib. 20) That we also may ourselves be like all the nations; and that our king may judge us, and go out before us, and fight our battles." We are taught in another Baraitha: R. Jose says: "Israel was commanded three positive commandments when they entered Palestine, viz.: They shall appoint a king; they shall destroy the descendants of Amalek; and they shall build a Temple. But it was not known which was the first. However, from (Ex. 17, 16) And he said. Because the Lord hath sworn on his throne that the Lord will have war with Amalek from generation to generation, it is to be inferred that the commandment relating to the king was first, because the word kissei implies nothing else but a king, as it is said (I Chr. 29, 23) Then sat Solomon on kissei {the throne) of the Lord as king. Still it was yet unknown which should be first, the destruction of the descendants of Amalek or the building of the Temple. But when the passage says (Deut. 12, 10) He will give you rest from all your enemies … and then shall it be that the place, etc., it is to be inferred that the cutting off of the nation of Amalek was to be first. And so was it with David, as it is said (II Sam. 7, 1) And it came to pass, when the king dwelt in his house, and the Lord had given him rest, etc., That the king said to Nathan the prophet, see now, I dwell in a house of cedar," etc.

(Devarim 12:10) "And you will cross the Jordan and you will dwell in the land … (11) and the place that the L-rd your G-d will choose, etc." R. Yehudah says: Three mitzvoth were commanded to Israel upon their entrance to the land: to appoint a king over them, to build the Temple, and to cut off the seed of Amalek,