Notice in Psalms 105 and 106 how the exodus story is retold yet once again. This was the defining moment in the life of Israel. In 105 the writer recounts the incredible event of the exodus itself. Psalm 106 tells of Israel's disobedience in both the wilderness and the Promised Land.
Could this have been written to a nation in exile? Israel in Babylon? It is likely that the exodus story was a favorite of Jews relocated to the land of Persia. It would have been a natural way for a disenfranchised people to remind themselves that their God had delivered them before, and that he would come through for them again.
Then Psalm 106 narrates Israel's unfaithfulness. Could this perhaps be a warning to not make the same mistake once they were delivered from the Persians? The lesson: God freed our fathers from Egypt, but they soon forgot to be thankful. When God frees us from Babylon, let's not make the same mistake.
Have you ever said, "Oh that could never happen to me"?