Sorry about this, but I just wrote this post for another thread and it seemed to suit this thread quite well too so I have to admit that I've just copied and pasted it in here rather than writing it all again.
Please beware!
Though the Bible does give provision for separation, and sometimes a person's husband/wife will divorce them, nowhere does the Bible state that remarriage is acceptable. In fact the Bible says that remarriage is adultery. Paul does say in the letter to the Corinthians that if a husband and wife separate then it either needs to be with a view to reconciliation or they must remain unmarried.
I know that people say that some verses seem to imply that remarriage is ok, but nowhere is it stated in black and white that remarriage is ok. However there are plenty of verses which categorically state that remarriage is adultery and that we are not to commit adultery.
People may say that it's ok because God is forgiving, but a pre-requisite for God's forgiveness is repentance, and repentance means to acknowledge that you are sinning and to turn away from it and not to do it anymore (admit it and quit it). How can a person remarry and ask God's forgiveness yet carry on as they are?
When we marry for the first time God makes us one flesh with our husband/wife for as long as both are still living. How then, can we ever be made one flesh with someone else when we're already one flesh with our first marriage partner, and in God's eyes we will be until one partner is no longer alive...
Also, marriage is a picture of Christ's relationship with the church. If we are allowed to divorce and remarry, then surely this means that Jesus can divorce us if He wants to??? Just a thought...
The Bible says that marriage is a covenant and not a contract that you can break if one partner lets the other down. A covenant cannot be broken, but can only be violated. And even if one partner violates the covenant and leaves, the other can still decide to be faithful to the vows they made...that they will love and be faithful (etc) to that person as long as they both live.
The Bible says it's better not to vow, than to make a vow and not fulfill it.
Ecclesiastes 5:4-5 'When you make a vow to God, do not delay to pay it; for He has no pleasure in fools. Pay what you have vowed - better not to vow than to vow and not pay.'
Anyway, these are just a few thoughts. I'm not saying these things in order to judge anyone and I know that this is a very sensitive subject and that emotions run high when talking about this sort of thing, but I truly believe we need to be faithful to God's Word and adjust our thinking to fit in with what the Bible says, rather than try to adjust what the Bible says in order to make it fit in with our thinking. Staying single may be the hardest thing a person ever has to do, but God will always give us the strength to do what is right if we decide to obey Him no matter what. Remember that the Bible says
'not everyone who says to me "Lord, Lord," will enter the kingdom of heaven, but he who does the will of My Father in heaven'. And in 1 John 2:4 it says
'He who says, "I know Him," and does not keep His commandments, is a liar, and the truth is not in him.' Quite a dangerous position to be in!
I'm not saying that people must agree with this because it's my opinion; rather they must look at it for themselves and not think about how they feel about the subject, but honestly seek what God says on the subject, and then do what He says. I know it may seem unfair but God created us and He made the rules...
Love and prayers...
In Him