See note Psa. 104:351a and note Psa. 146:11a.

See note Psa. 104:351a and note Psa. 146:11a.
Psalm 147 is a praise to Jehovah for the rebuilding of Jerusalem. The gathering of the outcasts is the release of the captives to bring them back to Jerusalem for the rebuilding of Jerusalem.
The Babylonians and Persians as the captors of the outcasts (v. 2).
Job 38:41; Luke 12:24; cf. Matt. 6:29