I must confess, I have read of a few, who call themselves Christians, who refuse to sign.
Here is the essence of their sanctimonious logic:
Roman Catholic Person: I just read the Manhattan Declaration, and I stand behind the three truths proclaimed in the document. I am going to sign it.
Sanctimonious Christian: I am not going to sign it!
Roman Catholic Person: why not?
Sanctimonious Christian: because I do not agree with your position on Justification, therefore, I will not stand with you.
Dear sanctimonious ones, please grow up, please stop looking for arguments, please stop acting like Pharisees.
Would you too criticize Christ for having his feet washed with oil by the prostitute?
Stand for truth, yes, but not at the expense of your commanded love. You will have no witness if you continually nauseate the world with your holier-than-thou attitude.
This is the time to stand against an evil rising tide in our society, and not to act like the guy in this photograph.