Commentaries:
Jamieson, Fausset, and Brown
an hireling . . . whose own the sheep are not—who has no property, in them. By this He points to His own peculiar relation to the sheep, the same as His Father's, the great Proprietor and Lord of the flock, who styles Him "My Shepherd, the Man that is My Fellow" (Zechariah 13:7), and though faithful under-shepherds are so in their Master's interest, that they feel a measure of His own concern for their charge, the language is strictly applicable only to "the Son over His own house" (Hebrews 3:6).
seeth the wolf coming—not the devil distinctively, as some take it [STIER, ALFORD, etc.], but generally whoever comes upon the flock with hostile intent, in whatever form: though the wicked one, no doubt, is at the bottom of such movements [LUTHARDT].
I am the door of the sheep—that is, the way in to the fold, with all blessed privileges, both for shepherds and sheep (compare John 14:6; Ephesians 2:18).
Other Jamieson, Fausset, and Brown entries containing John 10:12:
Ezekiel 22:27
Ezekiel 34:3
Zechariah 11:17
Matthew 10:16
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