Bro. Shinji Amari graduated with a master degree from the Missionary Baptist Seminary in Little Rock, Arkansas in 1965. Then in 2004, he was granted a doctorate degree from the Texas Baptist Institute in Henderson, Texas. 

Besides currently being the pastor of Abiko Baptist Church, Bro. Amari is an instructor of the Japan Missionary Baptist Seminary and the president of Abiko Missionary Baptist Seminaries in the Philippines. He was also the host of Lamp of Hope on Japanese Christian Radio Broadcasting for more than 32 years. He is a published author with books such as:

Baptism, The Baptist, "Lamp of Hope" Series 1-4, Discipleship Bearing Fruit, Bible by Eight Ages- Research Materials, Story of Bible Plants, and God's Wonderful Creation. Japanese translation of Baptist Church History by John T. Christian.