The Bible relates that Jacob and his twelve sons, along with their sons, went down into Egypt as a group of about seventy persons, including Reuben and his four sons. According to the account in Exodus, the Israelites stayed in Egypt for 430 years, and their numbers grew to include about 600,000 men, not counting women or children. At this point they left Egypt (see The Exodus) and wandered for forty years in the wilderness between Egypt and the promised land of Canaan.