John's baptism

John's baptism had a two-fold purpose; 1) It manifested Jesus to Israel(John1:31),and 2) it didn't bring salvation but it brought the knowledge of salvation by remission of sins(Luke1:77). So the KJV bible being a self defining book anywhere we see water baptism for the remission of sins we know what it means; like in Acts2:38.Ac:2:38: Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.We see they had the Holy Ghost(John20:22) also before the cross, the only difference is the one manifested by John's baptism was murdered by the Jews,And Jesus ascended so He could be with all the saved. Instead of just Prophets,Priests,and Kings in the Old Testament, by His Spirit.