He left to the land of Midian after he killed the Egyptian.
Abraham remarried, this time to a woman named Keturah. The children he had with her were: Zimran, Jokshan, Medan, Midian, Ishbak and Shuah. Joktan was the father of Sheba and Dedan. The descendants of Dedan were Asshurim, Letushim and Leummim. The sons of Midian were Ephah, Epher, Hanoch, Abida and Eldaah. All these were sons of Keturah.
Genesis 25: 1-4
Notice the name Midian in the verse. That was the common ancestor of the Midians. So these people were also Hebrews from the line of Abraham and Keturah. Moses sons were Hebrews from both sides.
Moses was not permitted to set his feet on the promised land.
she had leprosy
he punishment according to Moses for adultery was stoning till death.
The punishment given to both Moses as well as Aaron is that both did not set foot in the promised land. Both died.
A brief episode of leprosy (Numbers ch.12).
An apology
Moses after he realized that he was seen killing a Egyptian fled to the land of Median.Now we must remember to kill a Egyptian was a unpardonable crime , with death as punishment then.
extradition
Blame the dog.
1) Adulterers were killed by a lesser form of punishment (henek), not stoning.2) Moses didn't create the laws; God did (Exodus 24:12).
resign from office
Moses did not receive a formal punishment for killing the Egyptian; rather, he fled to Midian to escape the consequences of his actions. After killing the Egyptian who was beating a Hebrew, Moses feared for his life when he discovered that his act was known. In Midian, he spent many years in exile before returning to Egypt to lead the Israelites out of slavery. His act of killing the Egyptian is often viewed as a pivotal moment in his transformation into a leader.