Weary is more than tired.
The dictionary says weary is exhausted in strength, endurance and vigor.
This verse connects the weariness to sorrow.
Weary is out of strength.
Out of endurance,
Out of vigor.
But God fully satisfies that weariness.
Whatever is empty, He supplies.
Whatever is drained, He replenishes.
Thus says the LORD of hosts, the God of Israel.
Thus says the LORD of hosts, my God.