From "The God Who Is There"

This is what Francis Schaeffer says you should believe when you become a Christian ...

1. Do you believe that God exists and that he is a personal God, and that Jesus Christ is God - remembering that we are not talking of the word or idea god, but of the infinite-personal God who is there?

2. Do you acknowledge that you are guilty in the presence of this God - remembering that we are not talking about guilt-feelings, but true moral guilt?

3. Do you believe that Jesus Christ died in space and time, in history, on the cross, and that when he died his substitutional work of bearing God's punishment against sin was fully accomplished and complete?

4. On the basis of God's promises in his written communication to us, the Bible, do you (or have you) cast yourself on this Christ as your personal Savioud - not trusting in anything you yourself have ever done or ever will do?

This is what believing on the Lord Jesus means. If a man has believed in this way, he has God's promise that he is a Christian.