Charles Ellicott Commentary Exodus 13:6

"Seven days thou shalt eat unleavened bread, and in the seventh day shall be a feast to Jehovah." — Exodus 13:6 (ASV)

A feast to the Lord. —Compare Exodus 12:16, where a holy convocation is ordered for the seventh day. The Jews regard this day—the twenty-first of Abib—as the anniversary of the passage of the Red Sea.