Leviticus 2:14; Leviticus 23:9-14; Leviticus 23:22

14 “If you present a grain offering to the LORD from the first portion of your harvest, bring fresh grain that is coarsely ground and roasted on a fire.
9 Then the LORD said to Moses, 10 “Give the following instructions to the people of Israel. When you enter the land I am giving you and you harvest its first crops, bring the priest a bundle of grain from the first cutting of your grain harvest. 11 On the day after the Sabbath, the priest will lift it up before the LORD so it may be accepted on your behalf. 12 On that same day you must sacrifice a one-year-old male lamb with no defects as a burnt offering to the LORD . 13 With it you must present a grain offering consisting of four quarts of choice flour moistened with olive oil. It will be a special gift, a pleasing aroma to the LORD . You must also offer one quart of wine as a liquid offering. 14 Do not eat any bread or roasted grain or fresh kernels on that day until you bring this offering to your God. This is a permanent law for you, and it must be observed from generation to generation wherever you live.
22 “When you harvest the crops of your land, do not harvest the grain along the edges of your fields, and do not pick up what the harvesters drop. Leave it for the poor and the foreigners living among you. I am the LORD your God.”