TSK
Treasury of Scripture Knowledge references in WEB.
"'Seven days you shall eat unleavened bread; even the first day you shall put away yeast out of your houses, for whoever eats leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
"Speak to the children of Israel, and tell them, 'When you have come into the land which I give to you, and shall reap its the harvest, then you shall bring the sheaf of the first fruits of your harvest to the priest:
You shall count for yourselves seven weeks: from the time you begin to put the sickle to the standing grain you shall begin to number seven weeks.
At that time, Jesus went on the Sabbath day through the grain fields. His disciples were hungry and began to pluck heads of grain and to eat.