Another parable He put forth to them, saying: "The kingdom of heaven is like a mustard seed, which a man took and sowed in his field, which indeed is the least of all the seeds; but when it is grown it is greater than the herbs and becomes a tree, so that the birds of the air come and nest in its branches."Another parable He spoke to them: "The kingdom of heaven is like leaven, which a woman took and hid in three measures of meal till it was all leavened."All these things Jesus spoke to the multitude in parables; and without a parable He did not speak to them, that it might be fulfilled which was spoken by the prophet, saying:"I will open My mouth in parables;I will utter things kept secret from the foundation of the world."- Matthew 13:31–35
In yesterday's reading, Jesus gave the parable of the wheat and the tares (weeds): Another parable He put forth to them, saying: "The kingdom of heaven
is like a man who sowed good seed in his field; but while men slept, his
enemy came and sowed tares among the wheat and went his way. But when
the grain had sprouted and produced a crop, then the tares also
appeared. So the servants of the owner came and said to him, 'Sir, did
you not sow good seed in your field? How then does it have tares?' He
said to them, 'An enemy has done this.' The servants said to him, 'Do
you want us then to go and gather them up?' But he said, 'No, lest
while you gather up the tares you also uproot the wheat with them. Let
both grow together until the harvest, and at the time of harvest I will
say to the reapers, "First gather together the tares and bind them in
bundles to burn them, but gather the wheat into my barn."'"
Another parable He put forth to them, saying: "The kingdom of heaven
is like a mustard seed, which a man took and sowed in his field, which
indeed is the least of all the seeds; but when it is grown it is greater
than the herbs and becomes a tree, so that the birds of the air come
and nest in its branches." Another parable He spoke to them: "The kingdom of heaven is like
leaven, which a woman took and hid in three measures of meal till it was
all leavened." My study Bible cites the commentary of Theophylact, who writes that the mustard seed and the leaven represent the disciples. For they began as just a few men, but "soon encompassed the whole earth." They also stand for faith entering a person's soul, which then causes an inward growth of virtue. This soul will become god-like and can receive even angels (the birds of the air come and nest in its branches).
All
these things Jesus spoke to the multitude in parables; and without a
parable He did not speak to them, that it might be fulfilled which was
spoken by the prophet, saying: "I will open My mouth in parables; I will utter things kept secret from the foundation of the world." This quotation is from Psalm 78:2. For an elaboration on the reason Jesus speaks in parables, see this reading.
The two very simple parables that Jesus gives in today's reading give us yet more dimensions (so to speak) in which the kingdom of heaven works in our world. The first, the parable of the Mustard Seed, tells us a story of explosive and surprising growth, leading to developments which are unanticipated from such a small -- even tiny -- beginning. The mustard seed is unassuming, humble, almost infinitesimal in its smallness. And yet, the growth that comes from it is towering, as far as plants go; it even spreads enough and grows enough so that it can support other life: the birds of the air who may take shelter in its branches. We shouldn't forget that Jesus has already spoken of Himself as the Sower, and so this very tiny little seed is also part of the word of God. It grows seemingly exponentially, in Jesus' description of the resulting tree-like herb. The parable of the Leaven describes a different kind of growth. This growth is not exterior and not exponential. Rather it is an interior growth. It describes an enzyme-like movement that entirely changes a substance into something other than what it was. Elsewhere my study Bible comments that this is a rare instance in Scripture in which leaven is used as a positive influence. Most often, leaven is used as an adulterating substance, that disturbs the purity of something. But Jesus uses it positively here, to teach us about the work of the kingdom of heaven within us, and within our families and communities, extending even to to nations and to the world. Similarly to the metaphors of salt and light to Christians within communities and in the world, leaven as metaphor for the kingdom of heaven gives us an image of even greater depth of influence and transformation. It teaches us about the kind of change wrought by the presence of the kingdom of God within us, and the presence of the Holy Spirit. We are meant to be transformed, transfigured. Even as Christ Himself was transfigured (Luke 17:1-2), we are given an image of the presence of the kingdom of God and its work within us and in our world. However, as the very act of Christ choosing to speak in parables indicates, these effects also depend on faith, on our capacity for hearing and seeing and recognizing the precious value of the things He offers. So much depends upon our hearts and our desires as well, a synergy that also depends upon our "yes" as well, our cooperation. In today's reading, Jesus speaks of small things, easily overlooked, which have a great impact. Perhaps in them is illustrated the question: "For who has despised the day of small things?" (Zechariah 4:10). St. Matthew tells us that by speaking in parables, Jesus fulfills the words of the psalmist, whom he calls a prophet, "I will open My mouth in parables; I will utter things kept secret from the foundation of the world." All this work of the kingdom of heaven is hidden, secret. But it takes those with the eyes and ears to perceive and to know its working within us and among us.