Since 5 unelected judges last year decided marriage was theirs to define and mandated gay marriage from the Atlantic to the Pacific, this quandary will be faced more and more by people who love Jesus and are invited to weddings of people they care about.
There is understandable fear that sons and daughters, colleagues, and high school friends, will mistake our convictions for condemnation and take our absence as a slap in the face. Nevertheless, whenever I’m asked the question I reply “No”. Kevin DeYoung does a far better job than I do at explaining why not. In this post, he amends a previous one on attending gay weddings that purport to be Christian. This one provides the same clarity as the first but also answers “But what if the service is completely secular; is it still a bad idea?” https://blogs.thegospelcoalition.org/kevindeyoung/2016/06/07/should-i-attend-a-homosexual-wedding-if-the-service-is-completely-secular/