Midrash su Numeri 14:6

Variantly: "to Moses and to Aaron": I might think that the one who takes precedence in the verse takes precedence in the act. It is, therefore, written (Exodus 6:26) "It is Aaron and Moses" — Both are equal. Similarly, (Genesis 1:1) "In the beginning G d created the heavens and the earth": I might think that what takes precedence in the verse took precedence in creation. It is, therefore, written (Genesis 2:4) "on the day that the L rd G d made earth and heaven" — They were both created together. Similarly, (Exodus 3:6) "I am the G d of your father, the G d of Abraham, the G d of Isaac, and the G d of Jacob." I might think that whoever comes first in the verse comes first in importance. It is, therefore, written (Leviticus 26:42) "Then I will remember My covenant with Jacob, and also My covenant with Isaac, and also My covenant with Abraham will I remember" — to teach that all three are of equal importance. Similarly, (Exodus 20:12) "Honor your father and your mother." (Leviticus 19:3) "A man, his mother and his father shall you fear." — Both are of equal importance.

And the Lord spoke unto Moses and Aaron in the land of Egypt, saying (Exod. 12:1). Is it not a fact that He spoke only to Moses? Why, then, does the Scripture say unto Moses and Aaron? To indicate that just as Moses was included in the revelation, so too was Aaron. Where do we learn that He did not speak to Aaron? From the verse And it came to pass on the day that the Lord spoke unto Moses in the land of Egypt (Exod. 6:28), that is, to Moses and not to Aaron. Similarly in the above verse He spoke to Moses but not to Aaron. Why did He not speak to Aaron? In order (to enhance) Moses’ honor. However, if that were so, would not Aaron’s honor be diminished? No. For they were equals. You find that whenever two things are mentioned together they are of equal importance. On that day the heaven and the earth were finished (Gen. 2:1), and they are equal. Honor thy father and mother (Exod. 20:12), and they are equal. Joshua the son of Nun and Caleb the son of Jephunneh (Num. 14:38), and they were equals. Similarly, Moses and Aaron were equals.