Hebrews 6:1-2 With this in mind, we should stop going over the elementary truths about Christ and move on to topics for more mature people. We shouldn't repeat the basics about turning away from the useless things we did and the basics about faith in God. (2) We shouldn't repeat the basic teachings about such things as baptisms, setting people apart for holy tasks, dead people coming back to life, and eternal judgment.
The writer of Hebrews talks about the basic teachings such as the baptisms. Theses were teachings that were taught to new believers and brought to them a greater foundation.
Ephesians 4:4-6 There is one body and one Spirit. In the same way you were called to share one hope. (5) There is one Lord, one faith, one baptism, (6) one God and Father of all, who is over everything, through everything, and in everything.
Galatians 3:27 Clearly, all of you who were baptized in Christ's name have clothed yourselves with Christ.
So what does water baptism stand for or represent?It represents Jesus’ death and resurrection and how we got saved, we became partakers of Christ’s death and His resurrection.