As you should. I wish you could articulate whatever it is that you see as a discrepancy. You seem to be trying to tie Isaiah’s restatement of God’s ability to conceal the truth as though He is incapable of revealing that truth right before the end. This is the purpose of the seven seals of the scroll in the book of Revelation. This (my interpretation of your ‘discrepancy’) is speculation on my behalf, because you haven’t actually said what you take issue with.