He was a madman. He was mad about the Gospel, mad about saving each soul. He prepared for Sunday sermons for over 30 hours and strove to prepare himself. He was a disciple of Jesus. The church was God's people called out of the world, and at the same time, Christ's disciple sent into the world. Therefore, he described himself as having lived a life as a sent disciple until exhaustion. In the end, he cried. He cried because he missed Jesus, and he cried because he was sorry for his wife and children. And in his last hospital room, he cried for the congregation. Pastor Ok Han-heum is known as the most respected figure in Korean Protestantism after Pastor Han Kyung-chik. He is famous for his disciple training. He considered everything a large church pastor could enjoy as refuse and is known as a pastor who did his best for a single soul. 'I have never taken the people around me as a comparison target. My comparison target is the Apostle Paul and the believers of the early church. Compared to them, what do I have to boast about?' If 'Disciple, Ok Han-heum' were to be summarized in one word, it would be a person whose comparison target was different. Why has the Korean church become secularized? It can be said that it is because it always looks around. Therefore, the person we should look at is the believer of the early church, the one who lived according to the Word in the early church. If we live by comparing ourselves to the believers of the early church, how can the Korean church become secularized? By looking at 'Disciple, Ok Han-heum,' our comparison target may change.