According to the book 600000.
It was because of the Hebrews' covenant with Him that God did the Exodus for them (brought them out of Egypt). This is explicitly stated in Exodus ch.3.
the Exodus
Hebrews should remember the Exodus because God and and Moses helped the Israelites regain their freedom.
Yes he did (Exodus ch.12).
Moses
The covenant is that they will keep the Torah; and God (for His part) will treasure them. Exodus ch.19, Deuteronomy 26:16-19.
God's splitting of the Reed Sea (Exodus ch.14).
No, it's known as the Exodus.
The Egyptians gave their gold, silver and precious gems to the Hebrews.
God's splitting of the Reed Sea (Exodus ch.14).
God took them out of Egypt with wonders and miracles (Exodus ch.12-13).
The splitting of the Sea of Reeds (Exodus ch.14).