first day ye # 02_EXO_12_15 # 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. 
first day ye # 03_LEV_23_07 # In the first day ye shall have an holy convocation: ye shall do no servile work therein.