James 1:5-8 "If any of you lacks wisdom, he should ask God, who gives generously to all without finding fault, and it will be given to him. (6) But when he asks, he must believe and not doubt, because he who doubts is like a wave of the sea, blown and tossed by the wind. (7) That man should not think he will receive anything from the Lord; (8) he is a double-minded man, unstable in all he does."
Doubting is always put under the ban, because it stands as a foe to faith and hinders effectual praying. In the First Epistle to Timothy Paul gives us an invaluable truth relative to the conditions of successful praying, which he thus lays down: "I will therefore that men pray everywhere, lifting up holy hands, without wrath and doubting." All questioning must be watched against and eschewed. Fear and peradventure have no place in true praying. Faith must assert itself and bid these foes to prayer depart. - E.M. Bounds