St. Thomas is a member of the North/West Lower Michigan Synod of the Evangelical Lutheran Church in America (ELCA). The ELCA is a denomination of nearly 10,500 congregations across the United States and Carrabean. The ELCA has a global mission outreach taking place in 45 countries. The denomition counts 28 colleges and universities, 8 theological seminaries and over 2,000 schools.

St. Thomas congregation is a group of Christians who gather to worship and celebrate the risen Jesus the Christ. As such we are a part of a larger family of God that extends around the globe. As believers in Jesus Christ we are called to proclaim the good news of God's compassion for each individual as revealed in and through Jesus' life, his death on the cross and his being raised from the dead, and we are challenged to identify and respond to the human hurts and needs, hopes and dreams in a distinctively compassionate manner.