At the beginning of Moses and Aaron's encounter with Pharaoh, he asks a question, "Who is the Lord?" Then, in chapters 6, 7, 8, and 9, we read some variation of the phrase "that you may know"--to have irrefutable evidence to the existence and/or truth of something by intellect and by experience.
What would they, the Israelites and the Egyptians, know?
"that the LORD...has brought you out from under your burdens of the Egyptians"
"that I AM the LORD"
"that there is no one like the LORD our God"
God is consistently working in our lives "that we may know". The Apostle Paul was consistently pursuing by God's grace "that I may know Him and power of his resurrection" (Philippians 3:7-16).
How do you see God working around you today "that you may know"?