Branhamism practices baptism and the Lord's Supper as essential ordinances. Baptism, however, is administered only in the name of Jesus Christ, not in the Trinitarian formula. This reflects the Oneness theology and follows the Acts 2:38 pattern. Those previously baptized in the Trinitarian formula must be re-baptized in Jesus' name to have valid baptism. Immersion is the prescribed mode.

The Lord's Supper is observed as a memorial of Christ's death, using unleavened bread and wine. Some Message congregations also practice foot washing as a third ordinance, following John 13. These practices are viewed as obedience to Christ's commands and marks of covenant relationship with God and the community. The ordinances are not regarded as saving sacraments in the Catholic sense but as important acts of identity and remembrance.