We already have the Mark. In Rev13:16 the Greek word is mistranslated 'receive.' All concordances agree, it means the opposite; 'give.' What 'number of man' have you always had to give to participate in the economic community? SSI#. You have it memorized in your forehead and present the card in your right hand. It will be the first ID number placed on any new form of ID chip or other. It's not the FORM that is damnable, it's the worship of the beast. All countries now have one to satisfy the international banksters.
Rev13 does not create a new unforgivable sin.
Strong's number 1325