Numbers 12:1-16 KJV
1 And Miriam and Aaron spake against Moses because of the Ethiopian woman whom he had married: for he had married an Ethiopian woman.
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.
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.
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.

Miriam and Aaron had trouble with who Moses had taken to be a wife. Because of this they wanted to remove him from his position. God had a pow wow before the congregation with a cloud that cover the tabernacle as the three leaders stood in the doorway. God told them, he talk too and whoever he wanted and appointed whoever he called to position as a prophet. Basically he told them he had ordain Moses for this task to the Promise Land. After God spoke, the cloud lifted and Miriam was covered with leprosy. Moses cried for his sister's healing. Lord said he done this to her father she would been punished for seven days. The punish she would be outcasted seven days outside the camp and then be healed of her sin.

What we go against God authority can cause our lepropsy but our healing comes with repentance and correction. Congregation heard and seen all that happened. How would have felt as that cloud lifted and God's first punishment was instill on Miriam who started all the fuss? This was a special time in Israel's history where God still spoke directly to the leaders in front of congregation. The reality of God's authority in the congregation and his existence was quite clear. The authority of God would had impact on the people in the wilderness.

Dear Lord move in our hearts, reminding and even demonstrating your power and authority in our life. In Jesus precious and wonderful name, Amen.

Continual Scripture Study: 1 Samuel 16:3 KJV
3 And call Jesse to the sacrifice, and I will shew thee what thou shalt do: and thou shalt anoint unto me him whom I name unto thee.