Exodus 4:14

4:14 Then the Lord became angry with Moses, and he said, “What about your brother Aaron the Levite? I know that he can speak very well. Moreover, he is coming to meet you, and when he sees you he will be glad in his heart.

Exodus 22:27

22:27 for it is his only covering – it is his garment for his body. What else can he sleep in? And when he cries out to me, I will hear, for I am gracious.

Exodus 31:14

31:14 So you must keep the Sabbath, for it is holy for you. Everyone who defiles it must surely be put to death; indeed, if anyone does any work on it, then that person will be cut off from among his people.