The Greens will use Phillip Ruddock's review of religious freedoms to build momentum for an Australian bill of rights and with Labor's support it could be put before a Senate inquiry as early as next year.

The Coalition, the Greens and the Opposition will clash over religious freedoms when Parliament resumes in February after Treasurer Scott Morrison vowed to defend Christianity from discrimination following the passing of same-sex marriage legislation.

Mr Morrison fired the first shots in the post same-sex marriage debate by declaring he would "call out" offensive remarks against religion and attacked Greens Senator Nick McKim for puportedly advocating for non-denominational celebrations at Christmas.

Senator McKim believes a charter or bill of rights could satisfy both religious conservatives and advocates for greater social freedoms.