Matthew
Matthew 13:31ESV·traditional attribution

He put another parable before them, saying, “The kingdom of heaven is like a grain of mustard seed that a man took and sowed in his field.

John Calvin Reformed @genevareformer

By these parables Christ encourages his disciples not to be offended and turn back on account of the mean beginnings of the Gospel. We see how haughtily profane men despise the Gospel, and even turn it into ridicule, because the ministers by whom it is preached are men of slender reputation and of low rank; because it is not instantly received with applause by the...

Matthew Henry Presbyterian @wholebiblehenry

In these verses, we have, I. Another reason given why Christ preached by parables, Mat 13:34, Mat 13:35. All these things he spoke in parables, because the time was not yet come for the more clear and plain discoveries of the mysteries of the kingdom.

Commenting on Matthew 13:24-43

John Gill Reformed Baptist @doctorgill

Another parable spake he unto them,.... To the disciples and the multitude, and which was of the same kind, to the same purpose, and relating to the same subject as the former; the spread of the Gospel, and the increase of it in the world, The kingdom of heaven is like unto leaven.