Let us accept that as fact that the guard did draw a cross in the sand. Let us also accept that McCain was a practicing Christian while in prison. It is very reasonable to believe that as most when found in those condidtions he found faith. So accepting that he while imprisoned was a devout Christian the ultimate question becomes did he keep the faith once freedom was found and the threat of meeting his maker not a daily thought.
I must assume that a marriage vow made in the eyes of God between Man and Woman is one of the basic tenets of Christianity. I believe the good senator said such Saturday at the Saddlebrook Forum. Was his affair and divorce a result of Christian relapse which he has now regained? Was he not a Christian when he first married? Does anyone have documentation of when he first professed his faith? Was it before or after the vows of his first wedding. Had he not made such broad claims of faith in prison one would not wonder about the disconnect after prison. Yes he now says it was a moral failure but he did not elaborate on the conditions of and the sequence of in relation to his prison story. So should one ponder how sincere and deep morally deep his prison faith was? In reality was it no different then the many who find faith while incarcerated?
Bible.org: Sample Wedding Vows
Sample Wedding Vows
I, _____, take you, ______, to be my wedded wife. With deepest joy I receive you into my life that together we may be one. As is Christ to His body, the church, so I will be to you a loving and faithful husband. Always will I perform my headship over you even as Christ does over me, knowing that His Lordship is one of the holiest desires for my life. I promise you my deepest love, my fullest devotion, my tenderest care. I promise I will live first unto God rather than others or even you. I promise that I will lead our lives into a life of faith and hope in Christ Jesus. Ever honoring God's guidance by His spirit through the Word, And so throughout life, no matter what may lie ahead of us, I pledge to you my life as a loving and faithful husband.
He did say I do didn't he? now this is just a sample vow, I wonder what his actual vows said? Maybe he had a prenuptial that gave him an out after a certain time period!