(NIV)Read the text in context...
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[c] 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.
Assertion: apostates will burn in hell.
(thanks to Aleax for contribution)
NET Bible Heb 6:4 For it is impossible in the case of those who have once been enlightened, tasted the heavenly gift, become partakers of the Holy Spirit, 5 tasted the good word of God and the miracles of the coming age, 6 and then have committed apostasy,6
to renew them again to repentance, since7 they are crucifying the Son of God for themselves all over again8
and holding him up to contempt.6
tn Or "have fallen away." 7
tn Or "while"; Grk "crucifying...and holding." The Greek participles here ("crucifying...and holding") can be understood as either causal ("since") or temporal ("while").8
tn Grk "recrucifying the son of God for themselves
."It is a difficult passage indeed! However, we have examples of this in other passages as well!
1Co 5:1 It is actually reported that there is immorality among you, and immorality of such a kind as does not exist even among the Gentiles
, that someone has his father's wife. 2 You have become arrogant and have not mourned instead, so that the one who had done this deed would be removed from your midst
. 3 For I, on my part, though absent in body but present in spirit, have already judged him who has so committed this, as though I were present
. 4 In the name of our Lord Jesus, when you are assembled, and I with you in spirit, with the power of our Lord Jesus, 5 I have decided to deliver such a one to Satan for the destruction of his flesh, so that his spirit may be saved in the day of the Lord Jesus
.Fallen away indeed! Yet saved in the day of the Lord!