Summary: A soul tie is like a linkage in the soul realm between two people. It links their souls together, which can bring fourth both beneficial results and negative results.
The positive effect of a soul tie: In a godly marriage, God links the two together and the Bible tells us that they become one flesh. As a result of them becoming one flesh, it binds them together and they will cleave onto one another in a unique way. The purpose of this cleaving is to build a very healthy, strong and close relationship between a man and a woman.
Matthew 19:5, "And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh."
Soul ties can also be found in close strong or close friendships. They are not just limited to marriage, as we can see with King David and Jonathan:
1 Samuel 18:1, "And it came to pass, when he had made an end of speaking unto Saul, that the soul of Jonathan was knit with the soul of David, and Jonathan loved him as his own soul."
The negative effect of a soul tie: Soul ties can also be used for the devil's advantage. Soul ties formed from sex outside of marriage causes a person to become defiled:
Genesis 34:2-3, "And when Shechem the son of Hamor the Hivite, prince of the country, saw her, he took her, and lay with her, and defiled her. And his soul cleaved unto Dinah the daughter of Jacob, and he loved the damsel, and spoke kindly unto the damsel."
This is why it is so common for a person to still have 'feelings' towards an ex-lover that they have no right to be attracted to in that way. Even 20 years down the road, a person may still think of their first lover... even if he or she is across the country and has their own family, all because of a soul tie!
Demonic spirits can also take advantage of ungodly soul ties, and use them to transfer spirits between one person to another. I remember one young man I led through a deliverance; he was facing severe demonic visitations and torment all thanks to an ungodly soul tie. I led him to broke the soul tie, and the attacks stopped completely!
Ezekiel 23:17, "And the Babylonians came to her into the bed of love, and they defiled her with their whoredom, and she was polluted with them."
What are the signs of having a demon?
Here is a brief list of some of the areas in a persons life that a demon can affect. Please note that every time you find somebody struggling or facing one of the areas below, it's not necessarily a demon, but it's not uncommon to find a demon behind these things.
Compulsive sinning against your will: Addictions, uncontrollable anger, lust, urges to murder or commit suicide, etc.
Mental torment: Fear, depression, irrational heaviness in the soul, hearing voices in the mind, hearing auditable voices that nobody else hears, compulsive thoughts, insanity, mental illness, etc. Obsessive irrational worry is almost always a demon. People who are scared stiff over the unpardonable sin are in need of counseling and likely deliverance.
Emotional problems: Unable to get close to other people, sensing rejection for no reason, irrational emotional breakdowns, etc. Often more then just casting out demons is needed in this category, inner healing must also take place as well as tearing down strongholds.