Pope Francis leads Angelus prayer from his window at the Vatican
The Vatican's announcement, through its Congregation for the Doctrine of the Faith, was an official response to the question on the blessing of same-sex unions.
"The blessing of homosexual unions cannot be considered licit," according to the statement, obtained by USA Today.
The statement also reads: "There are absolutely no grounds for considering homosexual unions to be in any way similar or even remotely analogous to God's plan for marriage and family."
The Vatican's stance became unclear when in an interview released this summer with Pope Francis the Roman Catholic Church leader endorsement of same-sex civil unions.
Monday's Vatican statement also says God "never ceases" to bless all people, including people who are gay.
"But he does not and cannot bless sin," the statement reads. "He blesses sinful man, so that he may recognize that he is part of his plan of love and allow himself to be changed by him.. ... The Church does not have, and cannot have, the power to bless unions of persons of the same sex."
Comment: If people don't like the Catholic Church's unsurprising position on gay union, the solution is pretty simple: find a system you prefer. The liberal perspective of forcing its ideology onto everything else is a far greater system of control than the Catholic Church. The Vatican has their own demons to contend with but that is between them and their followers.