Please note my understanding is growing and I do not stand by every answer I have written. Please prove all things against scripture.
I serve the Lord Jesus Christ the true and living God. He created heaven and earth in six days and everything written about him in the scriptures is true. He punishes those who turn away from his will, but saves those who call on him. He will one day judge us for our sins, and cast the disobedient into hell. We need to recognise that a life serving any rules other than God's will lead to destruction in hell. We have no means to live a perfect life, so we need to fall on his mercy and be broken on the rock of Christ. Through his death and resurrection he made an atonement for sin, and brought in the promise of the new testament in his blood. This new testament is a miraculous change of heart from desiring sinful and worldly ways, to a life desiring God and his righteousness, leading us out of sin. This is a work he does in us, and not something we can do just by intending to be a better person or our own works. True faith will bring forth much fruit. Assurance of salvation is not just thinking "I know I believe", but can be found in the scriptures. Jesus said, Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me. If you do this for yourself, and not simply rely on someone else's opinion, there is a good chance you are saved. For to have faith in God you must believe that he is, and is a rewarder of those who diligently seek him.
Where is your heart? Is it set on heavenly things, or do you desire the things of this world? You know your heart by what comes out of your mouth.
I use the King James Holy Bible, and believe the modern versions are corruptions containing many heretical changes.