Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and
the Holy Spirit.
At the beginning of Jesus' public ministry, He chose to be baptized. When we follow His example in the waters of baptism, we're publicly declaring faith in Him! When one is baptized, they are immersed in water and celebrated by other believers! Baptism is the next step after accepting Christ as Lord and Savior of your life. It takes the believer from living a private faith to making their faith public to others! Even though Ephesians 2:8-9 teaches that faith in Jesus Christ is the only requirement for salvation, God desires for us to fulfill the command of Jesus by getting baptized.
For it is by grace you have been saved, through faith—and this is not from yourselves, it is the gift of God. Not by works, so that no one can boast.
Baptism allows us to demonstrate our connection with Jesus and with our church family. We're all members of one body under the authority of the same Lord. Baptism demonstrates this truth as a sacramental rite that unites us as believers.