Jimmy was raised in a Christian home, and he received Christ as his personal Saviour at the age of eighteen. After months of struggle in doubt, he finally admitted that he was lost needing salvation. After his conversion, he was baptized. A year later, he was called to full-time ministry, and he enrolled to West Coast Baptist College. He graduated with a bachelor degree in Pastoral Theology in 2005.

Sarah was also raised in a Christian home, and she was saved at her church’s children’s camp when she was nine years old. She heard a thorough explanation of the gospel, and she realized that she was lost needing Jesus Christ as her personal Saviour. She went to her cabin that night, and she prayed and trusted Christ as her personal Saviour. As a teenager, she surrendered her life to full-time Christian service and enrolled to West Coast Baptist College upon graduating high school. She graduated with a bachelor degree in Secondary Education with a minor in English in 2005. She also graduated with a Master Degree in Christian Education in 2006.

Jimmy and Sarah were married in 2007 while on staff at Lancaster Baptist Church, and the LORD has given them five beautiful children, Annabelle, Josiah, Silas, Matthias, & Ezra. After five years of burden and prayer for the mission field, the LORD has directed the Pak family to the field of Japan in the fall of 2015. The LORD was able to confirm His calling upon their lives through a survey trip to Japan in the Spring of 2016. Jimmy and Sarah are being sent out of Bible Baptist Church in Gardena, California. After two years of deputation, they arrived to Japan on January 20, 2019.