Is baptism required for salvation?
Answer: Actually no. In Matthew 3, Jesus says that baptism is something to fulfill as a work of righteousness. And Titus says that we are not saved by works of righteousness. So water baptism is considered to be counted as good works for salvation.
We are not saved by works but only by the faith of Jesus Christ.
In 1 Corinthians 3:17, Paul says that water baptism is not part of the saving gospel.
In 1 Peter 3:21, water baptism only saves us from having a bad conscience, not saving us from our sins. In fact, it says it doesn’t put away the filth of the flesh.
In 2 Corinthians, it points out that the filth of the flesh is referring to our sins.
So water baptism cannot save us from the filthiness of our sins.