2 Corinthians, Chapter 12, verses 20-21
20 although he feareth he shall to his grief find many offenders and public disorders there2 Corinthians, Chapter 13, verses 1-2
1 He threateneth severity, and the power of his apostleship against obstinate sinnersMark, Chapter 4, verses 24-34
21 We must communicate the light of our knowledge to others, 26 The parable of the seed growing secretly, 30 and of the mustard seed4
4:24 Take heed what ye hear - That is, attend to what you hear, that it may have its due influence upon you. With what measure you mete - That is, according to the improvement you make of what you have heard, still farther assistance shall be given.And to you that hear - That is, with improvement.
4:25 He that hath - That improves whatever he has received, to the good of others, as well as of his own soul. Mat 13:12; Luk 8:18.
4:26 So is the kingdom of God - The inward kingdom is like seed which a man casts into the ground - This a preacher of the Gospel casts into the heart. And he sleeps and rises night and day - That is, he has it continually in his thoughts. Meantime it springs and grows up he knows not how - Even he that sowed it cannot explain how it grows. For as the earth by a curious kind of mechanism, which the greatest philosophers cannot comprehend, does as it were spontaneously bring forth first the blade, then the ear, then the full corn in the ear: so the soul, in an inexplicable manner, brings forth, first weak graces, then stronger, then full holiness: and all this of itself, as a machine, whose spring of motion is within itself. Yet observe the amazing exactness of the comparison. The earth brings forth no corn (as the soul no holiness) without both the care and toil of man, and the benign influence of heaven.
4:29 He putteth in the sickle - God cutteth down and gathereth the corn into his garner.
4:33 He spake the word as they were able to hear it - Adapting it to the capacity of his hearers; and speaking as plain as he could without offending them. A rule never to be forgotten by those who instruct others.

12
12:21 Who had sinned before - My last coming to Corinth.Uncleanness - Of married persons. Lasciviousness - Against nature.
13
13:1 I am coming this third time - He had been coming twice before, though he did not actually come.
13:2 All the rest - Who have since then sinned in any of these kinds. I will not spare - I will severely punish them.