More red herring.
What happens whenever one became a believer in Jesus?
They were baptized.
Each and every verse in Scripture cannot possible account for all the doctrine regarding the Gospel. But, just take that little snippet you include in your post.
****When Paul was asked what one must do to be saved he replied “believe on the Lord Jesus Christ and you will be saved, and your family”. ****
That is from Acts 16:33. What follows immediately after that statement from Paul?
28 But Paul cried with a loud voice, saying, Do thyself no harm: for we are all here.
29 Then he called for a light, and sprang in, and came trembling, and fell down before Paul and Silas,
30 And brought them out, and said, Sirs, what must I do to be saved?
31 And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.
32 And they spake unto him the word of the Lord, and to all that were in his house.
33 And he took them the same hour of the night, and washed their stripes; and was baptized, he and all his, straightway.
They were baptized! It wasn’t the Holy Spirit who forgot to have him include baptism in order to be saved. Rather, it seems you forgot to include the whole passage.
Baptism is always connected to the forgiveness of sins and salvation.
Jesus was baptized because He came to take our place and take on our sins for our salvation. He said that one must be born again of water and the Spirit and in His baptism we see that he fulfills that Himself, since the Holy Spirit comes upon Him at His baptism.
In His baptism, we see what we all receive at our baptism when we die and are buried to sin and raised up a new creature free of sin and the wages of sin.
You didn’t answer my question. When Jesus was baptized what sins did He have that needed washed away?