Charles Ellicott Commentary Exodus 34:18

"The feast of unleavened bread shalt thou keep. Seven days thou shalt eat unleavened bread, as I commanded thee, at the time appointed in the month Abib; for in the month Abib thou camest out from Egypt." — Exodus 34:18 (ASV)

The feast of unleavened bread shalt thou keep. (Exodus 13:3–10; Exodus 23:15).

The month Abib. (See Note on Exodus 13:4).