John Gill
For every one that asketh receiveth,.... Some indeed ask and receive not, because they ask amiss, James 4:3 who either apply to a wrong person, or ask in a wrong manner, or from wrong principles, or with wrong ends in view: but when a man is right in the object of prayer, and in the matter and manner of prayer, and in the end he proposes to himself, let him be what he will, of whatsoever nation,...
Matthew Henry
In this chapter, I. Christ teaches his disciples to pray, and quickens and encourages them to be frequent, instant, and importunate in prayer, ver. 1-13. II. He fully answers the blasphemous imputation of the Pharisees, who charged him with casting out devils by virtue of a compact and confederacy with Beelzebub, the prince of the devils, and shows the absurdity and wickedness of it, ver. 14-26....
Charles H. Spurgeon
For every one that asketh receiveth, and he that seeketh findeth; and to him that knocketh it shall be opened. If a son shall ask bread of any of you that is a father, will he give him a stone? There were many stones in those days that were in appearance wonderfully like the bread which they used in the East; but would any father mock his son by giving him one of those stones to break his teeth...