MATTHEW 13  33 Another parable He spoke to them: “The kingdom of heaven is like leaven, which a woman took and hid in three measures of meal till it was all leavened.” 34 All these things Jesus spoke to the multitude in parables; and without a parable He did not speak to them, 35 that it might be fulfilled which was spoken by the prophet, saying: “I will open My mouth in parables; I will utter things kept secret from the foundation of the world.”36 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.” 37 He answered and said to them: “He who sows the good seed is the Son of Man. 38 The field is the world, the good seeds are the sons of the kingdom, but the tares are the sons of the wicked one. 39 The enemy who sowed them is the devil, the harvest is the end of the age, and the reapers are the angels. 40 Therefore as the tares are gathered and burned in the fire, so it will be at the end of this age. 41 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, 42 and will cast them into the furnace of fire. There will be wailing and gnashing of teeth. 43 Then the righteous will shine forth as the sun in the kingdom of their Father. He who has ears to hear, let him hear!

PRACTICAL APPLICATION:  Suicide is always condemned by the Church as a sin that sends one to Hell.  One reason is that is a final sin for which the person cannot repent as there is no repentance, only judgement, after death.  Another seriousness of this sin is that is deprives the person of the time he or she might need to remove the tares in life and become worthy of heaven through repentance.