​Renewal of Backsliders

Hebrews 6:4-6
 
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, 
5  And have tasted the good word of God, and the powers of the world to come, 
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.