The Lord is commanding, exhorting, emphasizing to the nation of Israel that they are to remember that He, with a powerful hand, brought them out of slavery in Egypt.
Four times in those verses He reminds them of what He did, what they are supposed to remember.
In a matter of days they were grumbling that He brought them out to die.
I tend to forget what God has done for me. Latent Israeli tendencies I suppose.
He has done so much more for me. He died for me. He rose breaking the power of death for me. He lavished His Spirit on me. He has brought people into my life who have instructed and mentored me. He has guided me and formed me for His purposes that He set for me before the foundation of the world.
Yet I forget. Yet I grumble. I need to remember.