מדרש על במדבר 3:31

Why was it written about everything: And thou shalt make, except in the case of the ark, where it says: Thou shalt make upon it? It is to teach us that if a man is worthy of the Torah, he is worthy of everything. And it states also: And their charge the ark, and the table, and the candlesticks, and the altar (Num. 3:31) to teach you that no-one is more important for you than one who devotes himself to the law.