Over the Christmas holidays, my parents came down for a visit. We had a wonderful time celebrating Christ's birth. For me the highlights were having my mom and dad in our Christmas services. During one small group class we went through Ephesians 4:4, 5--"There is one body and one Spirit--just as you were called to the one hope that belongs to your call--one Lord, one faith, one baptism." I knew our discussion would be interesting.
You see, I'm a Presbyterian pastor. My mom and dad are Baptists. Christians have disagreed about the proper mode and subjects of baptism since the early days of the church. We all agreed, however, that "one baptism" here refers to the baptism of all believers into one body, which is the result of the Holy Spirit bringing us alive in Christ. Baptism is an outward sign of the inward reality of the believer being in Christ as the result of the regenerating work of the Holy Spirit. All genuine believers who are "in Christ" are spiritually united. We have "one faith" in "one Lord" irrespective of denominational differences. So my parents believe only believers should be baptized. I baptize believers and their children. My parents recognize immersion as the only proper mode of baptism. I'll dunk or pour or sprinkle depending on what's available and appropriate at the time. (See this video for the wonderfully inventive method they use at The Crowded House in Sheffield, England.) Both my parents and I would like to see more people come to faith in Christ and baptized. In this we are united.