Here, from my schoolmaster,
Ezekiel 18:24 But when the righteous turneth away from his righteousness, and committeth iniquity, and doeth according to all the abominations that the wicked man doeth, shall he live? All his righteousness that he hath done shall not be mentioned: in his trespass that he hath trespassed, and in his sin that he hath sinned, in them shall he die.
From Jesus
Matthew 7:18 A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.
Matthew 7:19 Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.
Matthew 7:20 Wherefore by their fruits ye shall know them.
Matthew 7:21 Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
Hebrews 6:4 For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost,
Hebrews 6:5 And have tasted the good word of God, and the powers of the world to come,
Hebrews 6:6 If they shall fall away, to renew them again unto repentance seeing they crucify to themselves the Son of God afresh, and put him to an open shame.
Jesus volunteered and let Satan be instructional in having Him crucified, that was to defeat death and be the perfect sacrifice for our sins, the Lamb of God. If you think or believe, He is going to let you crucify Him, because you didn't value the gift enough to hang on to it, well, we are going to have to disagree.
Now there is the possibility that they were never saved,
ohn 2:3 And hereby we do know that we know him, if we keep his commandments.
John 2:4 He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
Everyone thought they were grafted in, the sounded like they were grafted in but they weren't grafted in but that causes this problem but it sounds like here they were grafted in
John 15:6 If a man abide not in me, he is cast forth as a branch, and is withered; and men gather them, and cast them into the fire, and they are burned.