Matthew 13:24-29 NIV
Jesus told them another parable: “The kingdom of heaven is like a man who sowed good seed in his field. But while everyone was sleeping, his enemy came and sowed weeds among the wheat, and went away. When the wheat sprouted and formed heads, then the weeds also appeared.
“The owner’s servants came to him and said, ‘Sir, didn’t you sow good seed in your field? Where then did the weeds come from?’
“ ‘An enemy did this,’ he replied.
“The servants asked him, ‘Do you want us to go and pull them up?’
“ ‘No,’ he answered, ‘because while you are pulling the weeds, you may uproot the wheat with them.
NIV: New International Version