Most of the above verses in which you had quoted describes a person who is NOT ROOTED in his belief.
A person who is rooted will not only continue to prosper and grow in spirit but will bring forth fruits of the spirit which will ENDURE to everlasting Life.
Some of the verses you had quoted, refers to those who have not root within themselves, and some of the other verses you had quoted such as,"My sheep hear my voice and I call them by name" refers to true and absolute conversion.
A True Child of God even though he may stray, WILL hear and obey the voice of God who is the Lead Shepard and will follow it.
This verse you had quoted says it all,"" My sheep hear my voice, and I know them, and they follow me: And I give unto them Eternal life; and they shall never perish, neither shall any man pluck them out of my hand" John 10:27-28. "
But then you had quoted,"Concerning the phrase, "once saved ALWAYS saved". How long is Eternal? An indefinite duration of Time. Christ promises the True Born Again Child of God, " Verily, verily, (It's True, it's true) I say unto you, He that believeth on me hath Everlasting life. " John 6:47."
Just as Universalists believe that everlasting of forever is not literal because it translates to "aion"which is a long duration of time, but a problem arises here.
Examples:The glory of God is temporary (contradicts: 1 Timothy 1:17, Revelation 22:5, Jude 1:25, Matthew 6:13, Galatians 1:5, Romans 1:23 and Philippians 4:20)
1.The righteousness of God is also temporary, which is implying that God is a sinner! (contradicts: 1 Timothy 1:17, 1Timothy 6:16, 1 Peter 1:23, Jude 1:25, John 12:34, John 14:16 and 2Corinthians 9:9)
2.God lives only temporarily, God eventually dies. (contradicts: 3.1Timothy 1:17, 1Timothy 6:16, 1Peter 1:23, Jude 1:25, Revelation 10:6, and Matthew 6:13)
4.God's Kingdom is temporary, (contradicts: Revelation 22:5, Daniel 7:18, Jude 1:25, Matthew 6:13, and Ephesians 1:21)
5.God is only wise temporarily, God is apparently unwise later on. (contradicts: 1Timothy 1:17, Romans 16:27 and Jude 1:25)
6.God is incorruptible temporarily, (contradicts: 1Timothy 6:16, 1Peter 1:23, 2Corinthians 9:9 and Romans 1:23)
7.God is not immortal, God eventually dies. (contradicts: 1Timothy 1:17, 1Timothy 6:16, 1Peter 1:23, Jude 1:25, Revelation 10:6, and Matthew 6:13)
8.God abide's only temporarily, (contradicts: 1Peter 1:23, John 12:34 and John 14:16)
by Don C. Hewey Copyright © 1998-1999,
So once A True Believer takes root within himself it will need to be nourished by the Word which will give growth from within, and as Jesus Himself had said," He that believeth on me, as the scripture hath said, out of his belly shall flow rivers of living water." John 7:38
And with this verse,"Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works? And then will I profess unto them, I never knew you: depart from me, ye that work iniquity."Matthew 7:23,24
There are many who go to church believing that, that is what will get them into the Kingdom of God, going to church just to sing songs but take no serious thought of what is actually heard at church and therefore does not take root within themselves. Or go to church then afterwards go looking for sexual relations outside the boundaries of marriage.
The Word of God says,"Be ye doers of the word and not hearers only, DECEIVING yourselves"
Furthermore it is written:Matthew 7:26- And every one that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand: But true believer builds His house upon a living foundation which is Christ or upon a sturdy rock.
SO OSAS? YES!
God Bless!