The LORD/ Yahweh.
Abraham
cause it was God's will
The Israelites were led out of Egypt by Moses, at God's command (Exodus ch.12).
Abraham
Moses or Abraham led the israelites out of Egypt i believe
Joshua led the Israelites into Canaan.
Moses (Exodus 32:34), by the guidance of God (Numbers ch.9).
Moses was a poor speaker whom God chose to lead the Israelites out of Egypt. God sent plagues on Egypt through Moses to convince Pharaoh to release the Israelites. Through God's guidance, Moses led the Israelites to freedom from slavery in Egypt.
Moses was an Israelite himself, and led his people for 40 years from Egypt to the border of the Promised Land. Moses was also given the Law to pass on to the Israelites from God.
In the Old Testament, leaders of Israel chosen by God included Moses, who led the Israelites out of Egypt, and Joshua, who succeeded Moses and led the Israelites into the Promised Land. Later on, there were judges like Samuel and prophets like Samuel or David who were chosen by God to lead the nation of Israel.
The presence of God accompanied the Israelites multiple times in the book of Exodus. Some notable instances include when God appeared to Moses in the burning bush, when God led the Israelites with a pillar of cloud by day and a pillar of fire by night, and when God's presence descended on Mount Sinai in fire, smoke, and a loud trumpet blast.
This is because Moses led the Israelites out of slavery and persecution in Egypt and brought them the 10 commandments from God.
Yes, he did a number of things forbidden by God. He married many wives who were not Israelites and this led him into idolatry.