The Prime Minister also compared the Church, which is fighting the plans, with the Conservative Party for the way it locked out homosexuals for so long.
In remarks to a reception for the Lesbian, Gay, Bisexual and Trans-sexual community in 10 Downing Street on Tuesday evening, Mr Cameron paid tribute to Tony Blair’s Government for the way that it had legalised “civil partnerships”.
He said: “I just want to say I am absolutely determined that this Coalition government will follow in that tradition by legislating for gay marriage in this Parliament.”