Peoples Church of Sarnia-Lambton has been affiliated with the Associated Gospel Churches of Canada since 1954.
The Associated Gospel Churches is composed of all the local churches, which are united on the basis of, and in conformity to, the Constitution of the AGC.
The mission of the AGC is to glorify God by uniting in doctrine and spirit to plant new churches in Canada, and to assist member churches in their obedience to the Great Commission of Jesus Christ.