That's is so true people want a license to keep sinning, and those people who believe in that false doctrine of “once saved always saved” and that you can never fall away then what does this next verse mean? Paul says in (Heb. 6:4-6) (v.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, (v.5) And have tasted the good word of God, and the powers of the world to come, (v.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.
You mean that you can be enlightened, be partakers of the Holy Ghost, taste the good word of God and still it’s possible for you to fall away. Just as a person choose to serve God of their own free will you can by that same free will decide to stop serving God. You are what is called a free agent, the choice is yours. Jesus says in (Matt. 24:13) But he that shall endure unto the end, the same shall be saved. That is until the end of your life, or until the Second Coming of the Lord.