I listed all the scriptures last week in another thread, but let's remember Jesus advanced this statement as part of a legal discussion about OT law. Acts 15:28-29 and I Cor. 7:2 give a totally different picture about what is expected in the NT life. The people who wrote "no greater burden" were Jesus' 12 and they were there when He said this. I Cor. 7:15 and 9:5 tell us what kind of mate we are supposed to have, and help understand why these divorces happen so much. And notice that there is no statement or implication anywhere in the Bible that marriage is a ceremony in front of a priest, prophet, minister, or judge, or any kind of person in authority.
There is so much more we need to pray through to get to what the Holy Spirit wants us to know about marriage, before we can even address such issues. How many centuries were people forced to believe the pope that the sun went around the earth, or thought they were on their way to hell because a priest wasn't present for them to confess their sins to, when they died in battle?