Throughout the New Testament, Jesus often taught in parables. There were so many lessons surrounding his disciples in the every day stuff of life, there for the teaching. There were lessons about generosity and jealousy, forgiveness and freedom, hypocrisy and Heaven, the list went on and on, and could've gone further.
Jesus' followers called Him Rabbi. This was no trite title or term of endearment. To be called Rabbi was to be labeled a master teacher, one qualified to expound on Jewish law. As the Rabbi of rabbis, Jesus could've used lofty linguistics, pretentious prose, and esoteric embellishment to make his point, but he didn't. The King of kings and the Lord of lords, this Rabbi of rabbis chose the humble elements of our existence to expound on Heavenly truths, the impoverished portent of base things that bore His image.
He used bread and beggars, flowers and fields, birds of the air and fruit on the trees. He chose these things, not only because they were within his demographic's grasp, but because they would prove to be perennial and pertinent examples throughout the centuries, through to twenty ten and beyond. The lessons were far-reaching, they had to be, because He didn't just come to reach the twelve, He came to reach you and me.
And I, brethren, when I came to you, did not come with excellence of speech or of wisdom declaring to you the testimony of God. For I determined not to know anything among you except Jesus Christ and Him crucified. I was with you in weakness, in fear, and in much trembling. And my speech and my preaching were not with persuasive words of human wisdom, but in demonstration of the Spirit and of power, that your faith should not be in the wisdom of men but in the power of God.
-1 Corinthians 2:1-5