They aren't "stated," they are found in, for starters
the seed which withered because it had no root (true faith),
the seed which was choked out (no perseverance),
those whose going out was to show they did not belong to us (the body of Christ)--1Jn 2:19,
any new Hebrew Christians who returned to Judaism (Heb 2:1-4, 4:1-3, 5:11-6:12, 11:1-38, 12:14-28).
There’s nothing in that verse that says they didn’t have true faith. Jesus said they believed.
“Those on the rocky soil are the ones who, when they hear, receive the word with joy; and yet these do not have a firm root;
they believe for a while, and in a time of temptation they fall away.”
Luke 8:13 NASB2020
No one can believe unless they have been granted grace by The Father. Your partial quote of 1 John 2:19 is way out of context. That verse was written about antichrists who spread lies about Christ. Not everyone who falls away falls into that category and furthermore John was speaking about a specific group of people. Hence the use of the word “They”. This doesn’t imply that everyone who goes out was not a true believer at one time. John 15:2 He cuts off every branch
IN ME that beareth not fruit. Surely you would not say that these branches were not in Christ when He specifically said that they are. The same applies to Galatians 5:4.
“You have been severed from Christ, you who are seeking to be justified by the Law; you have fallen from grace.”
Galatians 5:4 NASB2020
You can’t rightfully say that these people were never in Christ if Paul specifically said that they were severed from Christ.
I don’t see how Hebrews 2 is relevant to this discussion can you please elaborate?
Hebrews 4 doesn’t say that these people ever believed to begin with. This is in reference to those who heard the gospel and didn’t believe, not those who heard it and believed then later fell away. Hebrews 4 never says that they believed.
Hebrews 6 supports my position that people can partake of the Holy Spirit and fall away. Tell me do you receive the Holy Spirit before you repent and believe or after?
“For it is impossible, in the case of those who have once been enlightened and have tasted of the heavenly gift and have been made partakers of the Holy Spirit, and have tasted the good word of God and the powers of the age to come, and then have fallen away, to restore them again to repentance, since they again crucify to themselves the Son of God and put Him to open shame.”
Hebrews 6:4-6 NASB2020