Exodus 13:2-4

Young's Literal Translation

² `Sanctify to Me every first-born, opening any womb among the sons of Israel, among man and among beast; it [is] Mine.'

³ And Moses saith unto the people, `Remember this day [in] which ye have gone out from Egypt, from the house of servants, for by strength of hand hath Jehovah brought you out from this, and any thing fermented is not eaten;

⁴ To-day ye are going out, in the month of Abib.