Then I looked, and behold, the Lamb was standing on Mount Zion, and with him a hundred and forty-four thousand who had his name and his Father's name written on their foreheads.

This calls for a mind with wisdom. The seven heads are seven mountains on which the woman sits.

for God has put it into their hearts to carry out his purpose by being of one mind and giving over their royal power to the beast, until the words of God shall be fulfilled.