kjv@Exodus:13:9@ And it shall be for a sign unto thee upon thine hand, and for a memorial between thine eyes, that the LORD'S law may be in thy mouth: for with a strong hand hath the LORD brought thee out of Egypt.
Think of what the perception of God was before these acts. He was mostly full of promises. He had accomplished some necessary judgments (flood, Sodom), talked now and then to direct an individual. This is the first though that He had revealed with a mighty hand a entire people; first He had used one people to show forth His power to all other people and thereby spread the prophesy of the coming Christ. Now He will be right on top of these chosen people for a time to show us His precise nature.
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