Ezekiel 36:38

38 as numerous as the flocks for offerings at Jerusalem during her appointed festivals. So will the ruined cities be filled with flocks of people. Then they will know that I am the LORD.”

Read Ezekiel 36:38 Using Other Translations

As the holy flock, as the flock of Jerusalem in her solemn feasts; so shall the waste cities be filled with flocks of men: and they shall know that I am the LORD.
Like the flock for sacrifices,like the flock at Jerusalem during her appointed feasts, so shall the waste cities be filled with flocks of people. Then they will know that I am the LORD."
They will be as numerous as the sacred flocks that fill Jerusalem’s streets at the time of her festivals. The ruined cities will be crowded with people once more, and everyone will know that I am the LORD .”

What does Ezekiel 36:38 mean?

John Gill's Exposition of the Bible
Ezekiel 36:38

As the holy flock, as the flock of Jerusalem in her solemn
feasts
Like flocks of sheep, which were consecrated and set apart for holy uses, for sacrifices; even like the flocks of sheep, which were brought to Jerusalem to be offered in sacrifice at the three solemn festivals in the year; especially at the passover, when the Jews came from all parts of the country to slay and eat their passover; and every family had a lamb, which in all must be a great number: we read of thirty thousand lambs and three thousand bullocks given at one time for this service by King Josiah, besides what was given by the princes, ( 2 Chronicles 35:7-9 ) . The Targum is,

``as the holy people, as a people that is cleansed, and comes to Jerusalem at the feasts of the passover:''
or, "as the flock of the Holy Ones" F17; either of the holy God, Father, Son, and Spirit; or of holy men, who are made holy or sanctified by the Spirit of God: so shall the waste cities be filled with flocks of men;
or with men that are like sheep for meekness, harmlessness, patience, cleanness, society, and usefulness; and not with such as are comparable to unclean beasts, or beasts of prey; so it denotes both the quantity of persons that shall inhabit Judea, and dwelt both in the cities and churches there, and the quality of them.
FOOTNOTES:

F17 (Myvdq Nauk) "sicut oves sanctorum", Vatablus, Gussetius, Starckius.
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