Exodus 12:15-17 Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.

ASV_Strongs⁽ⁱ⁾

15 H7651 Seven H3117 days H398 shall ye eat H4682 unleavened bread; H389 even H7223 the first H3117 day H7673 ye shall put away H7603 leaven H1004 out of your houses: H398 for whosoever eateth H2557 leavened bread H7223 from the first H3117 day H7637 until the seventh H3117 day, H5315 that soul H3772 shall be cut H3478 off from Israel.

16 H7223 And in the first H3117 day H6944 there shall be to you a holy H4744 convocation, H7637 and in the seventh H3117 day H6944 a holy H4744 convocation; H4399 no manner of work H6213 shall be done H389 in them, save H5315 that which every man H398 must eat, H6213 that only may be done by you.

17 H8104 And ye shall observe H4682 the feast of unleavened bread; H6106 for in this selfsame H3117 day H3318 have I brought H6635 your hosts H776 out of the land H4714 of Egypt: H8104 therefore shall ye observe H3117 this day H1755 throughout your generations H2708 by an ordinance H5769 for ever.