Jesus didn't teach anything without a parable (Mark 4:34)
When the disciples asked Jesus about why he taught in parables, what they were really asking was, "Why are you making it so hard for people to understand?"
First of all, Jesus responds by saying that the Kingdom of God contains secrets.
Jesus when on to explain that the ability to know and understand these secrets is something that a person is given.
Faith is an ability that is given to everyone. Everyone believes in something. But the influence of sin causes some to believe in God, and some to put their faith in other things. But for those who put their faith in God, even just a little, more understanding is given. Think of it in this way. All people are given a "receiver" (faith), but not all people tune into God's channel.
But to those who do believe receive blessings
Jesus tells the disciples that from the very beginning of time, these are the things that people have most hoped for.
- Dave Peterson
Throughout his earthly ministry, Jesus used parables to convey deep truths about the Kingdom of God, God himself, and his followers. These simple stories reveal a richness and depth that, at first glance, may escape the hearer. But each parable says something eternity-revealing and spur us into action.