Numbers 12

1: And Miriam and Aaron spake against Moses because of the Ethiopian woman whom he had married: for he had married an Ethiopian woman.

(12:1, 9-10) Miriam and Aaron (Moses' brother and sister) criticize Moses for marrying an Ethiopian woman and thus breaking the law of God (see Ex.34:16, Dt.7:3, 1 Kg.11:2). But God makes it clear that his rules don't apply to his favorites, and he strikes Miriam with leprosy. Notice that only Miriam is punished, though both she and Aaron complained.
"Now the man Moses was very meek, above all the men which were upon the face of the earth."
That's a strange way to describe one of the cruelest men to have ever lived. (If he ever did live, which he probably didn't.) Moses, as he is described in the Bible, is anything but meek (See Num.31:14-18 for an example of his "meekness").
The NRSV translates this as: "Now the man Moses was very humble, more so than anyone else on the face of the earth." But if Moses wrote the entire Pentateuch, then he must have written this verse, too. Which seems like a strange thing for the humblest man on earth to say!
Was Moses meek?
Who wrote the Pentateuch?
(12:6) "If there be a prophet among you, I the LORD will ... speak unto him in a dream."
Now there's a reliable way to communicate with someone!

2: And they said, Hath the LORD indeed spoken only by Moses? hath he not spoken also by us? And the LORD heard it.

3: (Now the man Moses was very meek, above all the men which were upon the face of the earth.)

4: And the LORD spake suddenly unto Moses, and unto Aaron, and unto Miriam, Come out ye three unto the tabernacle of the congregation. And they three came out.

5: And the LORD came down in the pillar of the cloud, and stood in the door of the tabernacle, and called Aaron and Miriam: and they both came forth.

6: And he said, Hear now my words: If there be a prophet among you, I the LORD will make myself known unto him in a vision, and will speak unto him in a dream.

7: My servant Moses is not so, who is faithful in all mine house.

8: With him will I speak mouth to mouth, even apparently, and not in dark speeches; and the similitude of the LORD shall he behold: wherefore then were ye not afraid to speak against my servant Moses?

9: And the anger of the LORD was kindled against them; and he departed.

10: And the cloud departed from off the tabernacle; and, behold, Miriam became leprous, white as snow: and Aaron looked upon Miriam, and, behold, she was leprous.

God strikes Miriam with leprosy. (In the Bible, leprosy is caused by the wrath of God or the malice of Satan.)

11: And Aaron said unto Moses, Alas, my lord, I beseech thee, lay not the sin upon us, wherein we have done foolishly, and wherein we have sinned.

12: Let her not be as one dead, of whom the flesh is half consumed when he cometh out of his mother’s womb.

13: And Moses cried unto the LORD, saying, Heal her now, O God, I beseech thee.

14: And the LORD said unto Moses, If her father had but spit in her face, should she not be ashamed seven days? let her be shut out from the camp seven days, and after that let her be received in again.

"And the Lord said unto Moses, If her father had but spit in her face, should she not be ashamed seven days?" God asks the darndest things!

15: And Miriam was shut out from the camp seven days: and the people journeyed not till Miriam was brought in again.

16: And afterward the people removed from Hazeroth, and pitched in the wilderness of Paran.