Ellicott's Commentary for English Readers - Isaiah 40:9
(9) O Zion, that bringest good tidings.—A new section begins. In some versions (LXX. and Targum) and by some interpreters “Zion” is taken as in the objective case, O thou that bringest glad tidings to Zion; but as the participle, “thou that bringest,” is in the feminine, and a female evangeliser other than Jerusalem has not appeared on the scene, the Authorised Version is preferable. In that rendering the ideal Zion, seeing or hearing of the return of the exiles, becomes the bearer of the good... read more
John Dummelow's Commentary on the Bible - Isaiah 40:1-31
The Proclamation of Deliverance1, 2. The theme of the prophecies following: the period of Zion’s trouble and affliction is over. 3-26. Celestial voices give the message of restoration to God’s people, who are encouraged by the thought of His infinite power. 27-31. Trust in Jehovah is, therefore, the source of true strength.2. Warfare] RM ’time of service,’ i.e. enforced service and hardship: cp. Job 7:1. Double] i.e. double (ample) penalty (Jeremiah 17:18), in the sufferings of the exile.3-5. A... read more