Here's the truth...
People who seriously practice a traditional religious faith---whether Christian or other---have a divorce rate markedly lower than the general population.
The factor making the most difference is religious commitment and practice.
What appears intuitive is true. Couples who regularly practice any combination of serious religious behaviors and attitudes---attend church nearly every week, read their bibles and spiritual materials regularly; pray privately and together; generally take their faith seriously, living not as perfect disciples, but serious disciples---enjoy significantly lower divorce rates than mere church members, the general public, and unbelievers.Note that it is belief combined with practice that makes the difference, not just profession of faith. Much more at the link.