20 But now hear the place of the promise, as Micah says, And thou, Bethlehem, house of Ephrathah, are you little to be among the thousands of Judah? For out of you shall come forth unto Me a ruler, to be governor in Israel: and His goings forth are front the beginning, from the days of eternity. But assuredly as to the places, thou being an inhabitant of Jerusalem, know also beforehand what is written in the hundred and thirty-first psalm. Lo! We heard of it at Ephrathah, we found it in the plains of the wood .
For a few years ago the place was woody. Again you have heard Habakkuk say to the Lord, When the years draw near, you shall be made known, when the time has come, you shall be shown. And what is the sign, O Prophet, of the Lord's coming? And presently he says, In the midst of two lives shall you be known, plainly saying this to the Lord, “Having come in the flesh you live and diest, and after rising from the dead you live again.” Further, from what part of the region round Jerusalem comes He?
From east, or west, or north, or south? Tell us exactly. And he makes answer most plainly and says, God shall come from Teman (now Teman is by interpretation 'south') and the Holy One from Mount Paran, shady, woody: what the Psalmist spoke in like words, We found it in the plains of the wood.
Source: Catechetical Lectures (New Advent)