All lived before the second century CE. They are the folk who wrote what would become Scripture (the Bible). And no theologian since has been worthy to lick the dust from their feet.
They were, one and all, geniuses. From the author of Ps 137 to Qoheleth to Isaiah to the Deuteronomists to Luke and John and James and all the rest. Peerless geniuses.
Thank God for them.