When the Most High divided to the nations their inheritance, when he separated the sons of Adam, he set the bounds of the people according to the number of the children of Israel.
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Clement Of Alexandria
AD 215
This is he who bestows on the Greeks also their philosophy through the inferior angels. For by an ancient and divine ordinance angels are assigned to the different nations. But to be the Lord’s portion is the glory of believers.
Israel. He suffered the people of Chanaan to occupy as much land as would be requisite for the Israelites. Septuagint, "according to the number of the angels of God. "Hence many of the ancients gathered that there were seventy angel guardians of provinces, and as many languages; while others did not pretend to determine the exact number. But the version which they have followed, is in opposition to all the rest. (Calmet)
They have also disputed on this occasion, whether the elect will be equal in number to the good angels, as St. Gregory thinks; (hom. 34, in Luke xv.) or they will only fill up the places of those who have fallen. See Mag. Sent. ii. 9. Abenezra observes, that interpreters understand this text as alluding to the dispersion of nations, (Genesis xi.) when God decreed that the land of the seven nations should belong to and be sufficient for the Israelites. (Amama) (Haydock)
The Hebrew may be rendered, "He fixed the limits of each people. At that time the children of Israe...