Reddragon, I did some inquiring and this is what I found. He does NOT have the power nor the authority to call for any mass tattooing, ok? He didn't say anything of the sort.
What happened was that the man that was administering the oath messed it up, so the main man repeated his oath in the right way. It wasn't a prayer, it was the oath of office.
What you're thinking about is not going to happen overnight. There is a forerunner to the man that will dictate that everyone get tattooed. So far, we don't know who the forerunner is.
I hope you can relax some for now.
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.