This does not mean, contrary to what some try to claim, loss of salvation.4 It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, 5 who have tasted the goodness of the word of God and the powers of the coming age 6 and who have fallen away, to be brought back to repentance. To their loss they are crucifying the Son of God all over again and subjecting him to public disgrace. 7 Land that drinks in the rain often falling on it and that produces a crop useful to those for whom it is farmed receives the blessing of God. 8 But land that produces thorns and thistles is worthless and is in danger of being cursed. In the end it will be burned.
It means those who learn the truth, know what it means, see it in operation around them, but still walk away to other thinking and beliefs have no hope left.
They have rejected Christ, the Gospel, the Bible, the Holy Spirit, and all else associated with the true God.
We see that everywhere today.
Science will answer it all for us. There is no one or nothing in control of me but myself. My reasoning and logic is impeccable.
Once you do that, what is there? Nothing but living a lie.