Christian marriages are not immune from divorce. It happens much too often. Marriage is an institution established and ordained by God. The marriage union between man and woman mirrors the relationship between Christ and His bride, which is the Church. (Ephesians 5)
My husband and I have both been through divorce in the past, but by the grace of God we were forgiven for the mistakes we made in past relationships. God brought us together and He has have given us an opportunity to serve Him as missionaries. We also try to use our past experiences to minister to others with similar experiences.