Having examined the primary passages that teach apostasy we now examine the passages that the advocates of unconditional eternal security believe clearly support their doctrine:

John 10:27-29

My sheep listen to my voice; I know them, and they follow me. I give them eternal life, and they shall never perish; no one can snatch them out of my hand. My Father, who has given them to me, is greater than all; no one can snatch them out of my Father's hand.

Below are some comments I made long ago in my perseverance series against the idea that the writer of Hebrews is addressing his warnings of falling away to those whose faith is not genuine, or describing those with non-genuine faith. My comments are followed by more recent comments by Scot McKnight against O’Brien’s false faith interpretation. The specific language of the warnings and the way the believers are described and addressed simply will not allow for the false faith interpretation. The writer of Hebrews is describing genuine believers who have fallen away from faith and salvation and admonishing those with genuine faith to endure less they too fall way and forfeit salvation.

From: Perseverance of the Saints Part 10: Examining Wilderness Typology

10 And not only this, but when Rebecca also had conceived by one man, even by our father Isaac
11 (for the children not yet being born, nor having done any good or evil, that the purpose of God according to election might stand, not of works but of Him who calls),
12 it was said to her, “The older shall serve the younger.” [quoting Genesis 25:23]
13 As it is written, “Jacob I have loved, but Esau I have hated.” [quoting Malachai 1:2-3]
(Romans 9:10-13)

The Appeal

The typical Calvinist treatment of the text quoted above goes something like this:

...Paul chooses the twin brothers Jacob and Esau as a case study in divine election. Paul sets out to prove that election to salvation flows solely from God’s will and purpose
...

The classic King James Version of the Bible says, “It repented the Lord that he had made man on the earth, and it grieved him at his heart” (Genesis 6:6). Elsewhere, God says, “It repenteth me that I have set up Saul to be king for he is turned back from following me, and hath not performed my commandments” (1 Samuel 15:11). If God is perfect, how could he repent?

First, the Bible unequivocally teaches that God is perfectly good and thus incapable of doing evil (Psalm 5:4–5; James 1:13; 3 John 1:11). As such, God’s repentance must not be understood as entailing moral guilt. Indeed, the moral perfection of the Creator sets him apart from his sin–tainted creation (Leviticus 11:44–45; 19:2; 20:7; 1 Peter 1:15–16).