Albert Barnes Commentary Ezekiel 17:23

"in the mountain of the height of Israel will I plant it; and it shall bring forth boughs, and bear fruit, and be a goodly cedar: and under it shall dwell all birds of every wing; in the shade of the branches thereof shall they dwell." — Ezekiel 17:23 (ASV)

In the mountain of the height of Israel - The parallel passage (Ezekiel 20:40) points to the mountain on which the temple stood. But it is not here the actual Mount Moriah so much as the kingdom of which that mountain was the representative, the seat of the throne of the anointed Son of God (Psalms 2:6).

All fowl of every wing - (or, of every kind) are those who flock from all lands to this kingdom. Compare to Matthew 13:32.

The prophet brings prominently forward the future exaltation of the king; and he furnishes us thereby with hope, encouragement, and consolation, at such times as we see the Church of Christ in like depression.