So you tell me then how much faith is required of man for salvation? I'm not going to say Christ doesn't talk to the hearts of Pagans. Who are me or you to say he does or doesn't. I don't believe anyones righteousness saves them. Actually many mainstream Christian Churches have some Paganism in them. Christmas tree's Easter egg hunts at the church. Even Halloween Parties {for the kids of course}.
The faith of a mustard seed Christ said can move mountains. So tell me can that same seed not move hearts? The pagan may not be able to understand what he believes except the conviction. You must remember one man sought the Lord on simply a scripture. I'm certain after he was baptized he wasn't too much more aware of how, why, etc.
But I think Graham is right because we are in the last days. In the last days there will be an outpouring of the Holy Spirit and the Gospel must be preached to all nations. Does it have to be done by man? No there is in fact Divine Revelation. I do not believe Christ will return until he has given even the Pagan head hunters the Gospel first. At what moment will that happen? I would say it is ongoing now. But no one knows.
I don't believe that anyone can be saved outside of belief in Jesus Christ.
If you believe that they can, imagine what that says about Christ' death on the cross.
Was it all in vain?
That is logical.
Romans 10:17 So then faith cometh by hearing, and hearing by the word of God.
The other is not.