The Parabolic Key

When Jesus gave His disciples the Parable of the Sower, it seems that they lacked understanding of its meaning: “He said to them, ‘Do you not understand this parable? How them will you understand all the parables?’” (Mark 4:13).
In other words, the Parable of the Sower is the key to unlocking the mysteries of all the other parables. If any message comes from the parable, it is the fact that when the gospel is preached, there are true and false conversions. This parable speaks of the thorny ground, the stony ground, and the good soil hearer— true and false converts.
Once that premise has been established, then the light of perception begins to dawn on the rest of what Jesus said in parables about the kingdom of God. If one grasps the principle of the true and false being alongside each other, then the other parabolic teachings makes sense: the Wheat and Tares (true and false), the Good Fish and Bad Fish (true and false), the Wise Virgins and the Foolish (true and false), and the Sheep and Goats (true and false).
After the Wheat and Tares parable, Jesus gave the Parable of the Dragnet:
“Again, the kingdom of heaven is like a dragnet that was cast into the sea and gathered some of every kind, which, when it was full, they drew to shore; and they sat down and gathered the good into vessels, but threw the bad away. So it will be at the end of the age. The angels will come forth, separate the wicked from among the just, and cast them into the furnace of fire. There will be wailing and gnashing of teeth.” Jesus said to them, “Have you understood all these things?” They said to Him, “Yes, Lord” (Matthew 13:47-51).

(Ray Comfort, Revival’s Golden Key: Official Training Manual for End-Time Believers, Gainesville, Florida: Bridge-Logos Publishers, 2003, 15-16)