Ezekiel 34:23 - Matthew Poole's English Annotations on the Holy Bible

I will set; advance, establish, and make great; thus I will appoint and set up. One shepherd: formerly their many shepherds destroyed, as Jeremiah 12:10; now this one shall save. Literally and historically Zerubbabel may be somewhat intended, but principally and plenarily, as Christ is intended here, so in him it was accomplished; for he is the great, good, chief, only Shepherd, that laid down his life for his sheep. Feed them; give them best, most abundant, and most seasonable food, he also shall govern them in righteousness, and with equity. My servant David; Messiah, (as Kimchi on the place,) of the seed of David, the beloved One, who was typified by David, and in other places called by this name, as Isaiah 37:35 Jeremiah 30:9 Ezekiel 37:24 Hosea 3:5. He shall do all the office of a good and faithful shepherd, and that for ever. I will trust them in his hands, for he will keep them, that not one of them shall be lost, but shall go in and out under his hand, and find pasture.