The seeds the followers of the Lord, some of whom have been corrupted by the devil, the enemy of the Lord. God has chosen not to separate the good from the bad right away, but instead to allow each seed to grow to fruition and prove him or herself as wheat or a weed, "Let both grow together until the harvest" (Matthew 13:30). The harvest as the apocalypse, where the Lord will weed out the sinful and only accept the good seeds, or the wheat, into the Kingdom of Heaven. Even the messages of the foreshadowing of the Revelation were something known by the people of the time, who were typically of Jewish faith; "Jesus' message was shaped by Jewish eschatology; that is, Jesus proclaimed the end of all time," (Charlesworth 4). Thus, Jesus combines knowledge of both the harvest, which was common secular knowledge of the day, with the understanding of the end of the world, common in religious knowledge...

The weeds will "be cast into a furnace of fire: there shall be wailing and gnashing of teeth" or hell (Matthew 13:42). The basic message of this is allowed to transcend historical time periods, "Then shall the righteous shine forth as the sun in the Kingdom of their Father," (Matthew 13:43).
References

Bovon, Francis. The Last Days of Jesus. Westminster John Knox Press. 2006.

Charlesworth, James H. The Historical Jesus: An Essential Guide. Abdingdon Press. 2008.

Crossan,, John Dominic. Jesus: A Revolutionary Biography. HarperOne. 1995.

Holy Bible: King James Version. Pew Library ed. Thomas Nelson. 1994.

Horsely, Richard A. Jesus and Empire: The Kingdom of God and he New World Disorder. Fortress Press. 2002.

Voorst, Robert E. Jesus Outside the New Testament: An Introduction…