It is not my right or responsibility to know the ultimate ends of God's final plan for redemption, is it? In fact, isn't that exactly what faith is, trusting in a future glory despite whatever present circumstances mitigate against a future hope?
(See Heb. 11)
With the OT saints I believe that whatever vessels fitted for destruction, and the circumstances that arise from their actions, will ultimately prove to be to the glory of God.
God's love and mercy is proven by His faithfulness to His word, and despite what we may think is the correct plan of action, the Father often employs counter-intuitive measures to fulfill His plan. (i.e. the foolishness of the cross)
Perhaps not. I merely sought clarification of your position given the language you used. I sometimes see a mixed message among Calvinists, wherein a wolf is excoriated for misleading sheep. If I understand TULIP correctly, that wouldn't seem possible.