James 4:3

Ye ask, and receive not - Some think that this refers to their prayers for the conversion of the heathen; and on the pretense that they were not converted thus; they thought it lawful to extirpate them and possess their goods.

Ye ask amiss - Κακως αιτεισθε· Ye ask evilly, wickedly. Ye have not the proper dispositions of prayer, and ye have an improper object. Ye ask for worldly prosperity, that ye may employ it in riotous living. This is properly the meaning of the original, ἱνα εν ταις ἡδοναις ὑμων δαπανησητε , That ye may expend it upon your pleasures. The rabbins have many good observations on asking amiss or asking improperly, and give examples of different kinds of this sort of prayer; the phrase is Jewish and would naturally occur to St. James in writing on this subject. Whether the lusting of which St. James speaks were their desire to make proselytes, in order that they might increase their power and influence by means of such, or whether it were a desire to cast off the Roman yoke, and become independent; the motive and the object were the same, and the prayers were such as God could not hear.