I’ve seen some arguments online against abstinence, saying that since Adam and Eve didn’t have a wedding, they were fornicating. The Bible defines marriage as being between a man and a woman, but it doesn’t provide directives on weddings. Every culture around the world has unique wedding traditions, and God recognizes all of those marriages, even if they have different religions, as long as they follow the model of Genesis 1:27 and 2:24 (which is reiterated by Jesus in Matt 19:1-6).