Leviticus 19:1-10 NIV
The LORD said to Moses, “Speak to the entire assembly of Israel and say to them: ‘Be holy because I, the LORD your God, am holy.
“ ‘Each of you must respect your mother and father, and you must observe my Sabbaths. I am the LORD your God.
“ ‘Do not turn to idols or make metal gods for yourselves. I am the LORD your God.
“ ‘When you sacrifice a fellowship offering to the LORD, sacrifice it in such a way that it will be accepted on your behalf. It shall be eaten on the day you sacrifice it or on the next day; anything left over until the third day must be burned up. If any of it is eaten on the third day, it is impure and will not be accepted. Whoever eats it will be held responsible because they have desecrated what is holy to the LORD; they must be cut off from their people.
“ ‘When you reap the harvest of your land, do not reap to the very edges of your field or gather the gleanings of your harvest. Do not go over your vineyard a second time or pick up the grapes that have fallen. Leave them for the poor and the foreigner. I am the LORD your God.
NIV: New International Version