Jesus used parables, which are narratives, which illustrate some religious truth, as a medium of instruction to make his doctrines comprehensible for his followers. The parable of mustard found in all the three Gospels of Matthew, Mark and Luke.
Another parable put he forth unto them saying, the Kingdom of Heaven is like to a grain of mustard seed which a man took and sowed in his field which indeed is the feast of all seeds but when it is grown it is the greatest among herbs and becometh a tree, so that the birds of the air come and lodge in the branches there of. (Mt. 13: 31-32).
Some parables have been handed down in the abbreviated form. For instance, the parable of the copious harvest with few workers, the bridegroom and his guests, the old and new vine, the uprooted plants and the blind leaders of the blind, the cops and the vultures and the parable of the doctor called to cure the sick.