Which devour widows' houses - Which devour the families of widows, or the means of supporting their families. This they did under pretence of counseling them in the knowledge of the law and in the management of their estates. They took advantage of their ignorance and their unprotected state, and either extorted large sums for their counsel, or perverted the property to their own use.
No wonder that our Saviour denounced them! If there is any sin of special enormity, it is that of taking advantage of the circumstances of the poor, the needy, and the helpless, to wrong them out of the pittance on which they depend for the support of their families; and as God is the friend of the widow and the fatherless, it may be expected that such will be visited with heavy condemnation.
For a pretence - For show, or "pretending" great devotion.

Which devour widows' houses,.... See Gill on Matthew 23:14.

Which devour widows' houses, and for a pretence make long prayers: these shall receive greater damnation--They took advantage of their helpless condition and confiding character to obtain possession of their property, while by their "long prayers" they made them believe they were raised far above "filthy lucre." So much the "greater damnation" awaited them. (Compare Matthew 23:33). A lifelike description this of the Romish clergy, the true successors of "the scribes."