Commentaries:
Robertson's Word Pictures (NT)
They say (legousin). Present active of vivid dramatic action and the indefinite statement in the plural as in Revelation 13:16; Revelation 16:15. It is possible that the allusion is to the heavenly voice (Revelation 10:4, Revelation 10:8) and to the angel (Revelation 10:9).
Thou must prophesy again (dei se palin profhteusai). Not a new commission (Revelation 1:19), though now renewed. C.f. Ezekiel 4:7; Ezekiel 6:2; Jeremiah 1:10. The palin (again) points to what has preceded and also to what is to come in Revelation 11:15. Here it is predictive prophecy (profhteusai, first aorist active infinitive of profhteuw).
Over (epi). In the case, in regard to as in John 12:16 (with grafw), not in the presence of (epi with genitive, Mark 13:9) nor against (epi with the accusative, Luke 22:53). For this list of peoples see Revelation 5:9, occurring seven times in the Apocalypse.
Other Robertson's Word Pictures (NT) entries containing Revelation 10:11:
John 12:16
Revelation 11:10
Revelation 12:6
Revelation 13:16
Revelation 22:16
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