When they were in Hazeroth, Miriam and Aaron criticized Moses on account of the Cushite woman whom he had married—for he had married a Cushite woman.
They said, "Has the LORD spoken only through Moses? Hasn't he also spoken through us?" The LORD heard it.
Now the man Moses was humble, more so than anyone on earth.
Immediately, the LORD said to Moses, Aaron, and Miriam, "You three go out to the meeting tent." So the three of them went out.
References for Numbers 12:4
Then the LORD descended in a column of cloud, stood at the entrance of the tent, and called to Aaron and Miriam. The two of them came forward.
He said, "Listen to my words: If there is a prophet of the LORD among you, I make myself known to him in visions. I speak to him in dreams.
References for Numbers 12:6