Cross Reference EXODUS 12:17 AND YE SHALL OBSERVE THE FEAST OF UNLEAVENED BREAD FOR IN THIS SELFSAME DAY HAVE I BROUGHT YOUR ARMIES OUT OF THE LAND OF EGYPT THEREFORE SHALL YE OBSERVE THIS DAY IN YOUR GENERATIONS BY AN ORDINANCE FOR EVER

{Exodus 12:17} And ye shall observe 8104 z8804 x853 [the feast of] unleavened bread; 4682 for x3588 in this x2088 selfsame 6106 day 3117 have I brought y3318 z8689 your armies y6635 out x3318 x853 x6635 of the land 776 x4480 of Egypt: 4714 therefore shall ye observe 8104 z8804 x853 this x2088 day 3117 in your generations 1755 by an ordinance 2708 for ever. 5769

in this selfsame:
"And the Egyptiansª shall knowª ° that¹ I¹ [am] the LORD,ª when I stretch forthª °¹ mine handª upon¹ Egypt,ª and bring outª °¹ the childrenª of Israelª from amongª ¹ them." {Exd 7:5} + "And thou shalt shewª ° thy sonª in that¹ day,ª saying,ª ° [This is done] because¹ of² thatª [which] the LORDª didª ° unto me when I came forthª ° out of Egypt.ª ¹" {Exd 13:8} + "And when we criedª ° unto¹ the LORD,ª he heardª ° our voice,ª and sentª ° an angel,ª and hath brought us forthª ° out of Egypt:ª ¹ and, behold,¹ we¹ [are] in Kadesh,ª a cityª in the uttermostª of thy border:ª" {Num 20:16}

an ordinance:
"And this¹ dayª shall be¹ unto you for a memorial;ª and ye shall keepª ° it a feastª to the LORDª throughout your generations;ª ye shall keep it a feastª ° by an ordinanceª for ever.ª" {Exd 12:14}