Jesus teaches that the Kingdom of God is like someone scattering seed, and the seed comes up while the planter sleeps and waits. The harvest eventually comes because of the power of the seed itself. The good news that Jesus is lord and savior goes with divine power wherever it is scattered. Those who trust in Jesus need also to trust his powerful word.
God wants us to understand what he revealed through the teachings of Jesus and his apostles. But Jesus taught in parables, and the apostles' teachings are thousands of years old. How can we teach a world that isn't interested in trying to understand what Jesus taught us? In Jesus' example we find our mission -- to live the Truth in love.
Jesus taught in parables to hide the truth from those who did not really want to know the truth. The other side of that coin, so to speak, is that Jesus used the parables to reveal the truth to those who want to know and live by the truth. This is the lesson of Mark's account of the Parable of the Soils in Mark 4:1-20. The difference between receiving the truth or not is found in the fact that the few who would learn from Jesus asked him to help them understand.
In light of this, we learn a general principle of discipleship. Whatever "The Question" is in our lives at the moment, bring it to Jesus in order to learn the true answer.
Jesus' enemies accuse him of being the embodiment of Satan, because Jesus so easily casts out Satan's demons. Jesus quickly show them and everyone gathered how obvious it is that those enemies ignore the glaring Truth: Jesus is the embodiment of the one and only God.
The knowledge of the true God communicated by Jesus's teachings and actions sets free everyone held in Satan's chains of deception. Above all, Jesus' self-offering on the cross tells the Truth about God's love and God's justice. All who listen and believe are free forever, no matter what earthly governments are doing.