Matthew 18:19

Shall agree on earth. — The promise, as before, is dependent on implied conditions. Those who pray must be gathered together in the name of Christ (Matthew 18:20), i.e., as trusting to His intercession, asking a prayer which is not the utterance of the natural but the spiritual man, asking it in entire submission to the will of their Father in heaven. In the absence of those conditions, as in the prayer of the sons of Zebedee, asking they knew not what (Matthew 20:20), that which they desired might be withheld from them, or granted in quite another manner than that on which they had set their hearts.