Sproul in a recent podcast:
Consider a sturdy wooden chair on the floor in front of you.
Now. Do you believe it is a chair? Good, you do well.
Do you believe it is capable of supporting your weight? Excellent.
You are on the right track.
Now ask yourself: Is the chair supporting your weight? No? Why not?
It is because you are not sitting in the chair.
In the same way, it is one thing to acknowledge that God exists. It is
another thing to affirm that Jesus is God and is able to save you. But
these affirmations do not save you. You are only saved when you have
cast yourself upon Christ and his work, giving your life over to him
for your entire support.
You are not saved until you are in Christ.