1. To follow the examples set by Jesus.
"One day Jesus came from Nazareth in Galilee, and John baptized him in the Jordan River" (Mark 1:9).
2. Because Christ commands.
"Therefore, go and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit. Teach these new disciples to obey all the commands I have given you. And be sure of this: I am with you always, even to the end of the age" (Matthew 28:19-20).
3. It demonstrates that I really am a believer.
"...Many others in Corinth also heard Paul, became believers, and were baptized" (Acts 18:8).