What does The United Methodist Church believe about baptism?

Baptism is a sacrament. In a sacrament, God uses common elements — in this case, water — as means or vehicles of divine grace. Baptism is administered by the church as the Body of Christ. It is the act of God through the grace of Jesus Christ and the work of the Holy Spirit.

From FAQs About Baptism, Membership, and Salvation

By Water and the Spirit: A United Methodist Understanding of Baptism is the official foundation document on baptism.

Learn more about baptism -
By Water and The Spirit
This is Your Baptismal Liturgy