¹⁸ “Listen then to what the parable of the sower means: ¹⁹ When anyone hears the message about the kingdom and does not understand it, the evil one comes and snatches away what was sown in their heart. This is the seed sown along the path. ²⁰ The seed falling on rocky ground refers to someone who hears the word and at once receives it with joy. ²¹ But since they have no root, they last only a short time. When trouble or persecution comes because of the word, they quickly fall away. ²² The seed falling among the thorns refers to someone who hears the word, but the worries of this life and the deceitfulness of wealth choke the word, making it unfruitful. ²³ But the seed falling on good soil refers to someone who hears the word and understands it. This is the one who produces a crop, yielding a hundred, sixty or thirty times what was sown.”
–Jesus in Matthew 13:18-23 (NIV)–

Holding on to faith and a good conscience, 
which some have rejected and so have
suffered shipwreck with regard to the faith.
–Apostle Paul in 1 Timothy 1:19 (NIV)–

⁴ It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, ⁵ who have tasted the goodness of the word of God and the powers of the coming age ⁶ and who have fallen away, to be brought back to repentance. To their loss they are crucifying the Son of God all over again and subjecting him to public disgrace.
–Hebrews 6:4-6 (NIV)–

²⁶ If we deliberately keep on sinning after we have received the knowledge of the truth, no sacrifice for sins is left, ²⁷ but only a fearful expectation of judgment and of raging fire that will consume the enemies of God. ²⁸ Anyone who rejected the law of Moses died without mercy on the testimony of two or three witnesses. ²⁹ How much more severely do you think someone deserves to be punished who has trampled the Son of God underfoot, who has treated as an unholy thing the blood of the covenant that sanctified them, and who has insulted the Spirit of grace? ³⁰ For we know him who said, “It is mine to avenge; I will repay,” and again, “The Lord will judge his people.”
–Hebrews 10:26-30 (NIV)–

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Dr. French Arrington, Christian Doctrine: A Pentecostal Perspective, vol. 2 (Pathway Press, 1993), p. 184.