Then Isaiah boldly said [Isa. 45:1], “I [i.e., God] was found by a people [i.e., the Gentiles] who were not looking for me. I became known to people who were not asking for me.”
So, the [person who seems to be] last will be first [i.e., in importance and blessings], but the [person who seems to be] first will [end up] being last.”
Then the master said to the slave, ‘Go out into the roads and along the brushy trails and urge people to attend [the supper] so that my house will be full [of guests].’
For they did not know about God’s way of making people right with Himself, so they attempted to establish their own way. In doing this they did not submit to God’s way for being made right with Him.
What shall we say then? [Simply this]: That the Gentiles, who did not attempt to become right with God [by how they lived] were made right with God, and this was the result of their faith [in Christ].