Exodus 12:41-42 Now the length of time the Israelite people lived in Egypt was 430 years. At the end of the 430 years, to the very day, all the Lord's divisions left Egypt. (The judgment of God against Egypt had accomplished its purposes and the deliverance of God for Israel had now set a new path. Though God's people had lived in Egypt for many generations, though the Lord had revealed to Abram long ago that Abram's descendants would be enslaved in Egypt for 400 years, He has now finally fulfilled their deliverance after Jacob had brought his whole family to live in Goshen, at first under Joseph's provision and then later as slaves to the Egyptians. Now, the Lord was rescuing His people on the very 430th day of their sojourn there. His seeming delay gave Israel the time to develop identity, to grow as a people, and to learn to look to Him for deliverance. Though we are often impatient and demand God's answers immediately, His divine timing is far different from our temporal timing. Though we may not see immediate answers-- Abraham only saw the beginning of the promise in his son Isaac-- the picture of Israel's deliverance is a reminder to us that the Lord's purposes far outweigh anything we can envision. Today, the Lord still uses, as He did with Israel, what may seem an interminable delay in our lives to develop our identity in Him, to grow and mature us, and to help us learn to look to Him for deliverance.)
