Before we tackle issues regarding soul mate, let us first read this passage regarding marriage....we will find this on Matthew 22:23-30
First, when we talk about soul mate it is just appropriate to get resources from an authority that know our souls, someone who created that soul.We get our idea of soul from God and where can we find the word of God? The Holy Bible.
At the above given scenario, the people seems to be asking "who is the soul mate of the woman?" Since, she had been married to 7 men. So to whom she will be together eternally in heaven? Does it mean she had seven soul mates?
Now if we are taking into consideration what was Jesus reply, we can clearly see that, there is no such thing us soul mate destined for mankind. When I say soul mate here, this is the general notion that a man had a pre-destined woman for him or vice versa. According to earthly beliefs that there is only ONE person created for us to be betrothed.
The idea of soul mate also violate one basic principle. Our freedom of choice or free will. God make us human not robot. We had the option to like what we will like. Also, to dislike what we don't like.
Not only that the world view on soul mate is not Biblical it is also dangerous. Why? How many times I have heard people getting divorce because she or he reasoned out, that they finally found their soul mates.
Another, this idea became an excuse to say "Me and my spouse can not agree and will have a lifetime of bad karma." The two will either separate in the end or live a life full of regrets. Instead of working out a harmonious relationship.
But don't loose hope, there seems to be a Biblical support on soul mate. But it is not on terms we know.
After finding the one we love, and the courtship phase, there comes marriage...and what does Jesus said on this? Let us read Mark 10:7-8
There is the Lord's will but never a pre-assigned and pre-arrange partner. In this way we can pray for God to choose a better person for us among the people we meet. This does not leave all the matter to God and blame him later on if we chose the wrong person because we "think" he is our soul mate.
Jumping into conclusion for soul mates which are often just infatuations is not reasonable at all. Just because we have so much in common it doesn't mean we will have a marriage made in heaven. Statistic shows that love usually fade after the honeymoon period. There are varied reason's and I know you are familiar with them.
There is a guideline from the Bible what kind of spouse is ideal. I hope I have cleared this issue.