
Source: https://thefederalist.com/2014/07/08/a-bit-of-religion-can-be-bad-for-marriage/
I am curious what this study is considering "Conservative Protestant." I would be very interested in seeing what those numbers look like for Confessionally Reformed Protestants separate from other "Conservative Protestants."
Pray together, stay together🙏.
Regular religious services attendance drops the effective divorce rate by 47%.
Marriage generally seems to be something that devoutly religious people are simply better at, and that alone might be why our average fertility is higher.

Or maybe religious people tend to stay in toxic marriage longer because of reliagious reasons..
People who are good at commitment turn out to be good at commitment.
I would like to think there is a causal relationship as well, but it would be interesting to compare to something like Lions Club membership.
While I don't think that statistic is available, it is kind of funny that it can be approximated by a chart you posted earlier. If we consider devout Protestants as directionally secular commitments with respect to devout Catholics we do see a causal relationship.

"Of the 2,800 young adults represented in Figure 1, all married early by American standards, from ages 18 to 26. Those who divorced (about 20 percent of this sample) had relatively short marriages."
This outcome is not much worse than a failed cohabitation, but skews the statistics.