The Parable of the Tares (also known as the Parable of the Weeds, Parable of the Wheat and Tares, Parable of the Wheat and Weeds, or the Parable of the Weeds in the Grain), is one of the parables of Jesus, which appears in Matthew 13:24-30. The parable says that during the final judgment, the angels will separate the "sons of the evil one" (the tares or weeds) from the "sons of the kingdom" (the wheat). It follows the Parable of the Sower, and precedes the Parable of the Mustard Seed. According to the common interpretation, the good seeds are the spiritual children of Jesus Christ and the weeds are the rest of the population of the Earth that are the spiritual children of Satan.
The parable is as follows:
Another parable put he forth unto them, saying, The kingdom of heaven is likened unto a man which sowed good seed in his field:
But while men slept, his enemy came and sowed tares among the wheat, and went his way.
But when the blade was sprung up, and brought forth fruit, then appeared the tares also.
So the servants of the householder came and said unto him, Sir, didst not thou sow good seed in thy field? from whence then hath it tares?
He said unto them, An enemy hath done this. The servants said unto him, Wilt thou then that we go and gather them up?
But he said, Nay; lest while ye gather up the tares, ye root up also the wheat with them.
The word translated "tares" in the King James Version is ζιζάνια (zizania), plural of ζιζάνιον (zizanion). This word is thought to mean darnel (Lolium temulentum), a ryegrass which looks much like wheat in its early stages of growth. Roman law prohibited sowing darnel among the wheat of an enemy, suggesting that the scenario presented here is realistic. Many translations use "weeds" instead of "tares".
A similar metaphor is wheat and chaff, replacing (growing) tares by (waste) chaff, and in other places in the Bible "wicked ones" are likened to chaff.