Here are 7 Bible verses about soulmates from the Old and New Testaments of the Holy Bible (King James Version), sorted from most to least relevant.
Colossians 2:2 KJV
That their hearts might be comforted, being knit together in love, and unto all riches of the full assurance of understanding, to the acknowledgement of the mystery of God, and of the Father, and of Christ;
Hebrews 13:24 KJV
Salute all them that have the rule over you, and all the saints. They of Italy salute you.
Isaiah 34:16 KJV
Salute all them that have the rule over you, and all the saints. They of Italy salute you.
Genesis 2:22 KJV
Seek ye out of the book of the LORD, and read: no one of these shall fail, none shall want her mate: for my mouth it hath commanded, and his spirit it hath gathered them.
Song of Solomon 3:4 KJV
And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man.
1 Samuel 18:1 KJV
It was but a little that I passed from them, but I found him whom my soul loveth: I held him, and would not let him go, until I had brought him into my mother’s house, and into the chamber of her that conceived me.
3 John 1:2 KJV
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.
John 14:3 KJV
Beloved, I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth.