There Is Only One BAPTISM

If Ephesians 4:4-6 is part of the inspired word of God, which one isthat ‘one’ baptism of the Bible, and what are the implications for thosenot baptized by that baptism? Will they also go to heaven in view ofwhat Jesus says in John 3:3-5? In Romans 6:3-4, we are told we areburied with Jesus through baptism. Does the blood of Jesus also workfor people who have not been baptized by this ‘one’ baptism or are theyworshipping and praying in vain?