Justin Hartzell


Pastor of Worship & Discipleship

Justin was born and raised in a small town in the state of Georgia, USA. He has a Bachelor of Science from Georgia College and a Master of Divinity from Mid-America Baptist Theological Seminary. Justin met his wife, Chelsea, at church during seminary and they were married in 2010. In 2012, they followed the Lord's leading to live out the gospel and make disciples in Korea, teaching English and Bible at Kyungsung University. Their first daughter, Hadasah, was born in 2013. Their second daughter, Jubilee was born in 2017. They have been members of Redeemer since 2014 and look forward to what God has in store for the future.

Contact him here: justin.hartzell@me.com



Matthew Ambrosia

Pastor of Administration & Outreach

Matthew grew up in Texas in a family with 5 siblings. His walk with Christ started when he was a young boy as his mother explained the gospel to him. His faith deepened in university when his relationship with Christ became more personal. Matthew got his bachelor's degree in physics at Sam Houston University and his masters degree in mechanical engineering at Texas A&M University. It was at Texas A&M when he first became interested in missions and Korea as he met many international students. After graduation, he spent three years as a Journeyman missionary with the IMB in Busan. Wanting to stay in Busan after his mission term, he eventually ended up at the Catholic University of Pusan where he is a professor in the department of Environmental Administration. He finished his PhD in mechanical engineering at Pusan National University in 2013. Matthew got married in 2012 and lives with his beautiful wife and 2 daughters. He is hoping for a few more, but is waiting for his wife to give him the green light.

Contact him here at calledheavenward@hotmail.com



Caleb Button

Changwon Campus Pastor

Caleb grew up in New England. He received a degree in Business Administration from NH Tech. and then earned a degree in Bible Theology from Appalachian Bible College. While in West Virginia, Caleb met and married his lovely wife Martha.  Shortly after, they moved to Korea together at the start of 2010. Caleb and Martha welcomed Ivy (their first child) into the world in September 2014, and ask prayer for God’s will to be accomplished in her life, that one day she will come to a saving knowledge of Christ and walk vibrantly with our Lord and Savior.

Caleb has served at RICC since 2014.

Contact him here at caleb.michael.button@gmail.com