You have desires. Your desires determine your choices. If more than one desire is active in you at one time, the strongest desire will win. You have a desire to lose weight and therefore have decided to do daily morning exercise. You wake up at five o’clock in the morning and discover there are two desires working against each other in your mind: Stay in your comfy bed for another hour, or get up and exercise. If your desire to lose weight is stronger than your desire to stay in bed, you will get up. If the opposite is true, you will go back to sleep.
Your desires determine your choices, and you can’t choose your desires, at least not in the moment. You can shape your desires over time by your choices. You can create a lifestyle with systems and habits which develops certain desires in your life which then determine your choices. This is difficult and you’ll probably need outside help.
What about moral desires? If you are evil, and your desires are evil, your choices will be evil. How can you change this? How can you know what is good? How can you desire what is good?
You need to be transformed by the only one who can transform you: Your Creator.
The Christian gospel is not primarily about being saved from hell. It is about being saved from being evil. Being evil will send you to hell, but if you were somehow able to avoid hell, that wouldn’t mean that you were then good. The avoidance of hell doesn’t make you good. Christ’s salvation makes you good.
Free will is not the ability to choose A instead of B. Even a person whose will is enslaved to evil is able to choose A vs B. Free will is the ability to always choose the good. To choose the good is to know the good and to desire the good. Free will = good desires. Enslaved will = evil desires.
Christ offers to all salvation from enslavement to evil. You already know the good enough to know that Christ’s offer is true. You already have the desire within you to be saved, no matter how evil you might be. Therefore, Christ’s salvation is available to you right now. To choose that salvation is as simple as asking for it, which you can do right now.
But be warned, Christ’s salvation is no small thing. Your life as you’ve known it will be torn apart, you will die, and there’s no turning back.