The Lord Jesus Christ is head of the church and Lawgiver of the Gospel dispensation. He is the only Institutor of ordinances. Apostles had no discretion in the matter. They could only teach the baptized disciples "to observe all things" commanded by Christ. It was optional with him to institute many ordinances or few. It was his pleasure to appoint only two, namely Baptism and the Lord's Supper. These appointments of Christ are church ordinances in the sense that they pertain to his churches and are committed to the care of his churches, whom he holds responsible for their preservation in their original purity and integrity.
We believe that Jesus Christ commanded his church to regularly celebrate believer's baptism (Matthew 28:19-20, Acts 2:38, Acts 8:36-39) and the Lord's supper ( John 6:53-59, 1 Corinthians11:3-26,1 Corinthians11:17-34). Celebrating the ordinances are obedience to Christ and acts of biblical worship for us. We structure and format these acts of worship consistent with his instructions that for us, are the basis for our doctrinal beliefs and practices.