I have already explained what that verses refers to in my first answer to you about the meaning of water baptism. Do you really think that Paul could wash away his sins?
It is not referred to as a confession of sins but the fact remains that there was a confession of sins when men were baptized with water:
"And there went out unto him all the land of Judaea, and they of Jerusalem, and were all baptized of him in the river of Jordan, confessing their sins" (Mk.1:5).
For some reason you have this water baptism fixation to such an extent that you just deny what the Lord Jesus said here:
"Very truly I tell you, whoever hears my word and believes him who sent me has eternal life and will not be judged but has crossed over from death to life" (Jn.5:24).
In this verse the Greek word translated "believes" and the Greek word translated "has" are both in the "present" tense.
In
The Blue Letter Bible we read the following meaning of the present tense:
"The present tense represents a simple statement of fact or reality viewed as occurring in actual time. In most cases this corresponds directly with the English present tense."
Therefore, at John 5:24 the Lord is saying that those who were believing at the time the Lord Jesus spoke those words had already received eternal life. That is what is meant as something being
"viewed as occuring in actual time."
So once a person believes he receives eternal life. Anything which happens to anyone after he believes cannot contribute in any way to that person's receiving eternal life. Since a believer receives eternal life before a drop of water ever touches him then we can know that submitting to the rite of water baptism contributes nothing to anyone's salvation.
Cornelius and his household did.