Hebrews, Chapter 10, verses 32-39
19 An exhortation to hold fast the faith, with patience and thanksgivingMark, Chapter 4, verses 26-34
26 The parable of the seed growing secretly, 30 and of the mustard seed4
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.

10
10:32 Enlightened - With the knowledge of God and of his truth.
10:34 For ye sympathized with all your suffering brethren, and with me in particular; and received joyfully the loss of your own goods.
10:35 Cast not away therefore this your confidence - Your faith and hope; which none can deprive you of but yourselves.
10:36 The promise - Perfect love; eternal life.
10:37 He that cometh - To reward every man according to his works.
10:38 Now the just - The justified person.Shall live - In God's favour, a spiritual and holy life.By faith - As long as he retains that gift of God.But if he draw back - If he make shipwreck of his faith My soul hath no pleasure in him - That is, I abhor him; I cast him off. Hab 2:3, etc
10:39 We are not of them who draw back to perdition - Like him mentioned Heb 10:38.But of them that believe - To the end, so as to attain eternal life.