The last of the seven days of the Festival of Matzot (Unleavened Bread) commemorates ancient Israel’s crossing of the Red Sea, when Heaven delivered not just from slavery but also from certain death at the hands of the slave masters who pursued them.
Apostle Paul connected Israel’s passing from death to life through the sea to the passage of everyone who does likewise by trusting in Yeshua the Messiah (Jesus the Christ) and commemorating the freedom through baptism.
The God that spoke to the Pharaoh of Joseph was the same God Who spoke to the Pharaoh of Moses, who we meet in the Torah reading וארא Va’era (“I appeared,” Exodus 6:2–9:35). God does not change or grow, but He expects us to grow and change for the better. When we do, He is pleased. When we don’t, He is not pleased.
God showed great favor to the “Pharaoh who knew Joseph” because this Pharaoh accepted the warnings given to him by God and by Joseph. He and his people were blessed because of his humility and wisdom.
Similarly, the chief priests wouldn’t relent from their jealousy against Yeshua the Messiah (Jesus the Christ), yet Paul turned did turn away from his equally zealous persecution of believers.
The seventh day of Chag Matzot (Feast of Unleavened Bread) is a memorial to the crossing of the Red Sea. It’s not only the zenith of most movies about Israel’s flight from Egypt but also a parable about every believer’s path to repentance, salvation and righteousness.
We are continuing our “Journey to the 10 (commandments)” as our ancestors of old went the first time. We see God’s “high hand” redeem our ancestors from the Egyptians once and for all. Then they continue for three more days until they reached Marah on the 24th of Aviv.