Link to the original source in Korean:
http://godnara.egreef.kr/bbs/board.php?bo_table=07_01&wr_id=474

Above: On the bottom of this photo is proof in the church records that Jae-hoon Kim was a member of the ASH Witnesses church and Jang Gil-Ja was his wife officially in church records.

Above: The Korean original full testimony by Jae-Hoon Kim regarding his ex-wife and their relation with Ahnsahnghong and the church.
Here is the English translation of his testimony:
I married Jang Gil-ja (the current leader of the Ahn Sahng-hong Witnesses) in 1966. We were living a happy and peaceful life with our two children when I was introduced to the Church of God by an elderly elder from Busan. They said they were restoring the faith of the apostolic age, and my wife began attending zealously, keeping the seven feasts starting from the Feast of Unleavened Bread. She eventually became a preacher.
While I was away for a work assignment overseas, my wife's heart changed into that of a completely different person. Under the pretext of obeying God's word, she began neglecting our family. She left all the household responsibilities to me and even unilaterally sold the house I had worked so hard to buy with my sweat and tears overseas, donating the proceeds to their leader, Ahn Sahng-hong. She blindly obeyed the leader's every word but showed no interest in anything her own husband had to say. I repeatedly pleaded with her, asking her to be faithful to our family while still being devoted to the church, but she wouldn't listen. Instead, she started demanding a divorce, claiming it was "God's will," which broke my heart.
Under the guise of doing missionary work, she and Leader Ahn Sahng-hong would frequently travel out of town together for over a week at a time. If she had been traveling with other women, I could have understood, but how could anyone understand a man and a woman traveling alone like that?
I finally couldn't take it anymore and agreed to the divorce. I had lost my money, my wife, and my children, and I fell into a deep despair. My body and spirit became utterly weak and frail. There was no one to comfort my painful wounds. Because of this, I developed cirrhosis of the liver and various complications. I lingered near death multiple times in a lonely rented room, but thoughts of my children kept me from giving up completely.
When I recovered a little, I went to see my children to warn them, "The path you are on is wrong." But every time I tried to see them, they rejected me. Their mother had told the congregation that their father was dead, so my children said it would be awkward for them if I, their very much alive father, showed up, and they avoided meeting me.
After divorcing me, my wife immediately married Ahn Sahng-hong. Within the church, she was regarded as "God's Bride." Can this behavior—marrying a living leader while her husband and children are still alive, taking photos, showing them off to members, and calling herself the Bride—really be something that a holy God would approve of? After all this, can they still confidently claim that what they believe is the truth? Every time I heard this, rage would well up inside me, and I wanted to go to the church and expose this truth in front of all the members. But for the sake of my children, I suppressed my anger and endured. The insomnia and nervous breakdown I suffered because of this became severe. I traveled from one prayer center to another, trying to overcome the pain, but nothing could heal my shattered heart.
My prayer now is for the members of the Church of God, the Ahn Sahng-hong Witnesses, who proclaim that the world will end in 1988. I hope they will not be deceived any longer and will quickly return to the embrace of the true God so they may find salvation.