Hebrews 6:4 - 6:8
4 For in the case of those once having been enlightened and having tasted of the heavenly gift and having become partakers of the Holy Spirit, 5 and having tasted the good word of God and the powers of the age to come, 6 and having fallen away, it is impossible to renew them again to repentance, since they again crucify to themselves the Son of God and put Him to open shame. 7 For ground that drinks the rain which often falls on it and brings forth vegetation useful to those for whose sake it is also tilled, receives a blessing from God; 8 but if it yields thorns and thistles, it is unfit and close to being cursed, and its end is to be burned.