The church participates in two ordinances, baptism and the Lord’s Supper. Christ himself instituted these ordinances.
Baptism is the act of being fully immersed in water and brought back up to identify with Christ in his death, burial, and resurrection (Romans 6:3-4; Colossians 2:12). In the New Testament baptism was executed in only one way: the person being baptized was immersed or put completely under the water and then brought back up again (Mark 1:5; Acts 8:36-39)(Grudem).
Baptism is an act that is appropriately administered only to those who have made a genuine profession of faith in Jesus Christ. By their baptism, a person is bearing witness to: his salvific faith in Christ (Acts 18:8), his union with Christ (Romans 6:1-4), and his desire to obey Christ (Matthew 28:19-20)(Barackman).
A secondary symbol of baptism is the washing and cleansing from sins. Baptism is beneficial to the believer in that the Lord strengthens and encourages our faith. It is important to note that baptism is not necessary for salvation. However, it is necessary for our obedience to Christ.
The Lord’s Supper is the second of the two ordinances. This ordinance is a sign of continued fellowship with Christ. Jesus instituted the Lord’s Supper on the eve of His crucifixion, commanding that His followers continue to observe it until His return (Matthew 26:26-29)(Enns). The Lord’s Supper consists of eating and drinking elements that are symbolic of the physical body of Christ. These elements are not actually the body and blood of Christ (Transubstantiation) nor are Christ’s body and blood present in the elements (Consubstantiation). The elements are purely symbolic and give a visible sign that Christ himself is truly present.
At the Lord’s Supper, we meet him at his table to partake. When we partake in the Lord’s Supper we are to remember what Christ has done for us and be thankful. Only those who have put their faith and trust in Jesus should participate in the Lord’s Supper. Another aspect to the Lord’s Supper is self-examination (1 Corinthians 11:27-29). Self-examination includes looking at our relationships within the body of Christ and making sure they are Christ honoring. It also means that we are to examine our thoughts, actions, and attitudes to make sure we have confessed all sin and that we are right with God.
Worship is the act of glorifying God in his presence with our voices and hearts. Worship is a direct expression of our ultimate purpose for living. “to glorify God and fully to enjoy him forever” (Grudem).
One thing about worship that we need to recognize, though it may seem obvious, is that God is worthy of worship and we are not. We know that God is a jealous God in the sense that he is jealous for his own honor. Therefore we must not give glory or worship to any creature or any created thing.
Worship is not simply the time on Sundays when we sing songs to God. Musical worship is only a part of our worship. Worship is to be a lifestyle that characterizes believers. Romans 12:1 says, “I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship.” Our act of presenting our lives to God is our act of worship. We can worship through singing, prayer, giving, fellowship, and any other action that brings glory to God.