Theophylact of Ohrid

Further, of those who receive the seed as they ought there are three degrees. Wherefore it goes on, And these are they who are sown on good ground. Those who bear fruit an hundred-fold are those who lead a perfect and an obedient life, as virgins and hermits. Those who bear fruit sixty-fold are those who are in the mean as continent persons and those who are living in convents. Those who bear thirty-fold are those who though weak indeed, bear fruit according to their own virtue, as laymen and married persons.

Catena Aurea by Aquinas ↗

Augustine of Hippo

Work diligently the soil while you may. Break up your fallow with the plough. Cast away the stones from your field, and dig out the thorns. Be unwilling to have a "hard heart," such as makes the Word of God of no effect. Be unwilling to have a "thin layer of soil," in which the root of divine love can find no depth in which to enter. Be unwilling to "choke the good seed" by the cares and the lusts of this life, when it is being scattered for your good. …

Sermons On New Testament Lessons 73.3 ↗

Gregory the Dialogist

But the good earth brings forth fruit through patience, because clearly our good works are nothing if we do not also bear with equanimity the evils of our neighbors. For the higher anyone has advanced, the more he finds in this world what he must bear more harshly, because when our mind's love for the present age diminishes, the adversity of that same age increases. Hence it is that we see many both doing good and yet laboring under the heavy burden of tribulations. …

Forty Gospel Homilies, Homily 15 ↗

Bede

Or he bears thirty-fold, who instills into the minds of the elect faith in the Holy Trinity; sixty-fold, who teaches the perfection of good works; a hundred-fold, who shows the rewards of the heavenly kingdom. For in counting a hundred, we pass on to the right hands; therefore that number is fitly made to signify everlasting happiness. …

Catena Aurea by Aquinas ↗