Commentaries:
Jamieson, Fausset, and Brown
Jehovah of Sabaoth, that is, God of the angelic and starry hosts (Psalms 59:5; Psalms 147:4; Psalms 148:2). The latter were objects of idolatry, called hence Sabaism (II Kings 17:16). God is above even them (I Chronicles 16:26). "The groves" were symbols of these starry hosts; it was their worship of Sabaoth instead of the Lord of Sabaoth, which had caused the present desolation (II Chronicles 24:18). It needed no less a power than His, to preserve even a "remnant." Condescending grace for the elect's sake, since He has no need of us, seeing that He has countless hosts to serve Him.
Other Jamieson, Fausset, and Brown entries containing Isaiah 1:9:
Psalms 105:12-15
Isaiah 1:6
Isaiah 1:7
Isaiah 1:8
Isaiah 65:8
Jeremiah 50:20
Romans 9:29
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