When he preached that God "...has mercy on whomever he wills, and he hardens whomever he wills," they didn't like it either. "Why does he still find fault? For who can resist his will?" Paul's answer is timeless-- "Rom 9:20 But who are you, O man, to answer back to God? Will what is molded say to its molder, "Why have you made me like this?" Rom 9:21 Has the potter no right over the clay, to make out of the same lump one vessel for honored use and another for dishonorable use? Rom 9:22 What if God, desiring to show his wrath and to make known his power, has endured with much patience vessels of wrath prepared for destruction, Rom 9:23 in order to make known the riches of his glory for vessels of mercy, which he has prepared beforehand for glory-- Rom 9:24 even us whom he has called, not from the Jews only but also from the Gentiles?" Kind of puts a damper on our objections too, doesn't it?