But I believe that You died for my sins on the cross and paid my debt so that I can have eternal life as a free gift. I have decided to trust in you as my Savior and receive that gift. Thank you for dying for me and for your free gift of eternal life. In Jesus' name, Amen. If you have placed your trust in the gospel, you are now eternally saved.
Nothing can change that.
For I am persuaded, that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come, Nor height, nor depth, nor any other creature, shall be able to separate us from the love of God, which is in Christ Jesus our Lord. The Bible says that you are now sealed with the Holy Spirit and are a member of the Body of Christ. Noone, not even you, can now separate you from God's love. You can now know, based on the Word of God, that you have eternal life. And since you didn't do anything to earn eternal life, you don't have to follow any list of rules and regulations to keep eternal life.