exodus 13:3 And Moses said unto the people, Remember this day, in which ye came out from Egypt, out of the house of bondage; for by strength of hand the LORD brought you out from this place: there shall no leavened bread be eaten. - Free Bible Online

      Ex 13:3-10. MEMORIAL OF THE PASSOVER.

      3. Moses said unto the people, Remember this day--The day that gave them a national existence and introduced them into the privileges of independence and freedom, deserved to live in the memories of the Hebrews and their posterity; and, considering the signal interposition of God displayed in it, to be held not only in perpetual, but devout remembrance.
      house of bondage--literally, "house of slaves"--that is, a servile and degrading condition.
      for by strength of hand the Lord brought you out from this place--The emancipation of Israel would never have been obtained except it had been wrung from the Egyptian tyrant by the appalling judgments of God, as had been at the outset of his mission announced to Moses (Ex 3:19).
      There shall no leavened bread, &c.--The words are elliptical, and the meaning of the clause may be paraphrased thus:--"For by strength of hand the Lord brought you out from this place, in such haste that there could or should be no leavened bread eaten."

JFB.