Hebrews 6:1-12 "Therefore let us leave the elementary doctrine of Christ and go on to maturity, not laying again a foundation of repentance from dead works and of faith toward God,2 and of instruction about washings, the laying on of hands, the resurrection of the dead, and eternal judgment.3 And this we will do if God permits.4 For it is impossible, in the case of those who have once been enlightened, who have tasted the heavenly gift, and have shared in the Holy Spirit,5 and have tasted the goodness of the word of God and the powers of the age to come,6 and then have fallen away, to restore them again to repentance, since they are crucifying once again the Son of God to their own harm and holding him up to contempt.7 For land that has drunk the rain that often falls on it, and produces a crop useful to those for whose sake it is cultivated, receives a blessing from God.8 But if it bears thorns and thistles, it is worthless and near to being cursed, and its end is to be burned.
9 Though we speak in this way, yet in your case, beloved, we feel sure of better things—things that belong to salvation. 10 For God is not unjust so as to overlook your work and the love that you have shown for his name in serving the saints, as you still do.11 And we desire each one of you to show the same earnestness to have the full assurance of hope until the end,12 so that you may not be sluggish, but imitators of those who through faith and patience inherit the promises."
Notice verse 6:5 compared to I Corinthians 12:12-13 "For just as the body is one and has many members, and all the members of the body, though many, are one body, so it is with Christ.13 For in one Spirit we were all baptized into one body—Jews or Greeks, slaves or free—and all were made to drink of one Spirit." For those that beiieve that the Father does not intrude on ones life, here it says we were "made to drink" Ephesians 2:5 "made us alive" I Peter 1:3 "Hehas caused us to be born again" and Jesus says John 3:3 “Truly, truly, I say to you, unless one is born again he cannot see the kingdom of God.” No human can even see the kingdom of God unless they are born again, then you believe/repent. According to Jesus you cannot believe/repent then be born again, because you cannot see the kingdom until you've been born again.
Notice those in Hebrews tasted, where members of the body are made to drink, they do not taste, they were made to drink. Tasting is an expierance, where drinking is consumtion and has an effect to the body, it sustains life II Peter 1:3-15 has the same message in different words.
"His divine power has granted to us all things that pertain to life and godliness, through the knowledge of him who called us to his own glory and excellence,4 by which he has granted to us his precious and very great promises, so that through them you may become partakers of the divine nature, having escaped from the corruption that is in the world because of sinful desire.5 For this very reason, make every effort to supplement your faith with virtue, and virtue with knowledge,6 and knowledge with self-control, and self-control with steadfastness, and steadfastness with godliness,7 and godliness with brotherly affection, and brotherly affection with love.8 For if these qualities are yours and are increasing, they keep you from being ineffective or unfruitful in the knowledge of our Lord Jesus Christ.9 For whoever lacks these qualities is so nearsighted that he is blind, having forgotten that he was cleansed from his former sins.10 Therefore, brothers, be all the more diligent to confirm your calling and election, for if you practice these qualities you will never fall.11 For in this way there will be richly provided for you an entrance into the eternal kingdom of our Lord and Savior Jesus Christ.
12 Therefore I intend always to remind you of these qualities, though you know them and are established in the truth that you have.13 I think it right, as long as I am in this body, to stir you up by way of reminder,14 since I know that the putting off of my body will be soon, as our Lord Jesus Christ made clear to me.15 And I will make every effort so that after my departure you may be able at any time to recall these things."
The writter of Hebrews in his warning is being more discriptive, when speaking of those that John discribed in, I John 2:19 "They went out from us, but they were not of us; for if they had been of us, they would have continued with us. But they went out, that it might become plain that they all are not of us." Also notice Hebrews 6:9 and II Peter 1:12 are asurring those that are in the body.