Exodus 13:15 DBY

¹³  And every firstling of an ass shalt thou ransom with a lamb; and if thou do not ransom it, thou shalt break its neck; and every firstborn of a man among thy sons shalt thou ransom.

¹⁴  And it shall be when thy son asketh thee in time to come, saying, What is this? that thou shalt say to him, With a powerful hand Jehovah brought us out from Egypt, out of the house of bondage.

¹⁵  And it came to pass, when Pharaoh stubbornly refused to let us go, that Jehovah slew all the firstborn in the land of Egypt, both the firstborn of men and the firstborn of cattle: therefore I sacrifice to Jehovah all that breaketh open the womb -- being males; and every firstborn of my children I ransom.

¹⁶  And it shall be for a sign on thy hand, and for frontlets between thine eyes, for with a powerful hand Jehovah brought us forth out of Egypt.

¹⁷  And it came to pass, when Pharaoh let the people go, that God did not lead them the way of the land of the Philistines, although that was near; for God said, That the people may not repent when they see conflict, and return to Egypt.