Thank you all so very much for your advice. This is very helpful to me. I will share the scriptures with my boyfriend and see what he says. I have brought up Matthew 19:5 to him in the past, but that didn't seem to make much of a difference. His parents have been reiterating Ephesians 6:1-3 6 Children, obey your parents in the Lord, for this is right. 2 “Honor your father and mother”—which is the first commandment with a promise— 3 “so that it may go well with you and that you may enjoy long life on the earth.” And this has his feeling conflicted. He even went to his pastor who gave him the same advice and told him he shouldn't marry without his parent's blessings.
He sent me a sermon from Moody's Ministries, where the pastor said one is to obey his/her parents, even if they think they are wrong or don't agree, for there is blessing in it.
My thinking is that yes, we must all obey our parents, but the scripture goes on to say, "in the Lord", this to me means that as long as it is within Christian principles, you should obey your parents. But if it is not in the Lord, or not within Christian principles, then you are not breaking the Lord's commandment by not obeying. Am I wrong in deriving this translation from the scripture?