Matthew 13:24-25, 27-30 AMP

Another parable He set forth before them, saying, The
                kingdom of heaven is like a man who sowed good seed in his field.  But while he was sleeping, his enemy came and sowed also
                darnel (weeds resembling wheat) among the wheat, and went on his way.  And the servants of the owner came to him and said, Sir, did
                you not sow good seed in your field? Then how does it have darnel shoots in
                it?  He replied to them, An enemy has done this. The servants
                said to him, Then do you want us to go and weed them out?  But he said, No, lest in gathering the wild wheat (weeds
                resembling wheat), you root up the [true] wheat along with it.  Let them grow together until the harvest; and at harvest
                time I will say to the…