Commentaries:
Robertson's Word Pictures (NT)
And I am not come of myself (kai ap emautou ouk elhluqa). Kai here="and yet." Jesus repeats the claim of verse John 7:17 and also in John 5:30; John 8:28; John 12:49; John 14:10.
Whom ye know not (on umeiv ouk oidate). Jesus passes by a controversy over the piece of popular theology to point out their ignorance of God the Father who sent him. He tersely agrees that they know something of him. Jesus says of these Jews that they know not God as in John 8:19, John 8:55.
Other Robertson's Word Pictures (NT) entries containing John 7:28:
John 4:22
John 5:19
John 7:10
John 7:16
John 7:46
John 7:49
John 8:19
John 8:24
John 18:20
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