For he says to Moses,
I will have mercy on whom I will have mercy, and I will have compassion on whom I will have compassion.
All Commentaries on Romans 9:15 Go To Romans 9
John Chrysostom
AD 407
God was telling Moses that it was not his to know who was deserving of God’s love towards man; rather, Moses was to leave that up to God. If that was true for him, how much more is it true for us! Homilies on Romans