Have you ever picked up a stick to eat it? If God is sovereign than “he can” make it healthy for you. This is the same ideology of God’s sovereign ability to make “a goat” give him glory.
What if there were a steak laying beside the stick but it was camouflaged and God decided to show you the steak instead of the stick? Dang! Wouldn’t that be a more intelligent omnipotent and omniscience God to show man the hidden steak than just letting you eat the stick?
So, God saw the steak (Saul) that no one else saw; and Paul says, doesn’t God have the right as the sovereign God to reveal steaks to the world to feed them with? Or you think it would be better to make God feed his children with sticks like the Jews who worshipped God? Or maybe somebody other than the Ninevites? Or somebody like the rich man who came to Jesus and who God saw as righteous in the law?
God “reveals/elects” (steaks) the camouflaged Gentiles to bring the light into the world which is described as the “Great Mystery”; yet, Satan continues to deceive people in thinking man is so stupid and incapable of worshipping God with a free will that God designed in man just like he proved in Jesus, who was fully man, that we CAN AND WILL OBEY ENTIRELY ON FAITH by the “bread” He totally supplies!