Matthew 2:6

And thou, Bethlehem, in the land of Juda--the "in" being familiarly left out, as we say, "London, Middlesex." art not the least among the princes of Juda: for out of thee shall come a Governor, &c.--This quotation, though differing verbally, agrees substantially with the Hebrew and the Septuagint. For says the prophet, "Though thou be little, yet out of thee shall come the Ruler"--this honor more than compensating for its natural insignificance; while our Evangelist, by a lively turn, makes him say, "Thou art not the least: for out of thee shall come a Governor"--this distinction lifting it from the lowest to the highest rank. The "thousands of Juda," in the prophet, mean the subordinate divisions of the tribe: our Evangelist, instead of these, merely names the "princes" or heads of these families, including the districts which they occupied that shall rule--or "feed," as in the Margin. my people Israel--In the Old Testament, kings are, by a beautiful figure, styled "shepherds" (Eze 34:1-10, &c.). The classical writers use the same figure. The pastoral rule of Jehovah and Messiah over His people is a representation pervading all Scripture, and rich in import. (See Psa 23:1-6; Isa 40:11; Eze 37:24; Joh 10:11; Rev 7:17). That this prophecy of Micah referred to the Messiah, was admitted by the ancient Rabbins.

— Jamieson-Fausset-Brown Commentary (public domain)