Yep. They can justify anything they want as often as they want, but in the final analysis, the Lord will sort out the lies from the truth. They won’t be able to lie to Him.
I have a feeling they won't even be able to speak. The reactions of Isaiah and Ezekiel come to mind.
And even St. John passed out when he saw Jesus in the vision on Patmos.
It's too bad the word "awesome" has lost all its meaning. Because that experience is what it was invented for.