Commentaries:
Robertson's Word Pictures (NT)
Shall agree (sumfwnhswsin). Our word "symphony" is this very root. It is no longer looked at as a concord of voices, a chorus in harmony, though that would be very appropriate in a church meeting rather than the rasping discord sometimes heard even between two brethren or sisters.
Of my Father (para tou patrov mou). From the side of, "by my Father."
Other Robertson's Word Pictures (NT) entries containing Matthew 18:19:
Acts 1:14
Acts 15:15
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