The Wheat and the Tares

"The enemy’s purpose in sowing tares was to destroy the wheat. But the wise farmer will not allow the enemy to succeed. Instead, He will sort it out at harvest time.
As applied to the kingdom community, this parable teaches us that it is not our job to sort the tares from the wheat. That is only done at the time of harvest. Among God’s people, there may be some who are not genuine Christians, but it is God’s job to sort out false professors." David Guzik, Pastor

"Satan thus sows false doctrine in darkness. In the very place where the truth is preached, and while the hearts of people are open to receive it, by false but plausible teachers satan takes care to inculcate false sentiments. Often it is one of his arts, in a revival of religion, to spread secretly dangerous notions of piety. Multitudes are persuaded that they are Christians who are deceived. They are awakened, convicted, and alarmed. They take this for conversion. Or they find their burden gone; they fancy that they hear a voice; or a text of Scripture is “brought” to them, saying that their sins are forgiven; or they see Christ hanging on the cross in a vision; or they dream that their sins are pardoned, and they suppose they are Christians. But they are deceived. None of these things are any conclusive evidence of piety. All these may exist, and still there be no true love to God or Christ, and no real hatred of sin and change of heart. An enemy may do it to deceive them, and to bring dishonor on religion and the true believer’s relationship with God." Albert Barnes, Theologian

The Parable of the Wheat and the Tares
Another parable Jesus put forth to the people, saying: “The kingdom of heaven is like a man (farmer) who sowed good seed in his field; but while men slept, his enemy came and sowed tares (darnel/weeds) among the wheat and went his way. But when the grain had sprouted and produced a crop, then the tares also appeared. So the servants of the owner came and said to him, ‘Sir, did you not sow good seed in your field? How then does it have tares?’ He said to them, ‘An enemy has done this.’ The servants said to him, ‘Do you want us then to go and gather them up?’ But he said, ‘No, lest while you gather up the tares you also uproot the wheat with them. Let both grow together until the harvest, and at the time of harvest I will say to the reapers, “First gather together the tares and bind them in bundles to burn them, but gather the wheat into my barn.”

The Parable of the Tares Explained
Then Jesus sent the multitude away and went into the house. And His disciples came to Him, saying, “Explain to us the parable of the tares of the field.”
He answered and said to them: “The one who sows the good seed is the Son of Man (Jesus). The field is the world, the good seeds are the sons and daughters (believers) of the kingdom, but the tares are the sons and daughters (nonbelievers) of the wicked one. The enemy who sowed them is the devil, the harvest is the end of the age, and the reapers are the angels. Therefore as the tares (nonbelievers) are gathered and burned in the fire, so it will be at the end of this age. The Son of Man will send out His angels, and they will gather out of His kingdom all things that offend, and those who practice lawlessness, and will cast them into the furnace of fire. There will be wailing and gnashing of teeth. Then the righteous (believers) will shine forth as the sun in the kingdom of their Father. The person who has ears to hear, let him hear! Matthew Chapter 13.