James 1:3-9 New International Version (NIV)

³ because you know that the testing of your faith produces perseverance. ⁴ Let perseverance finish its work so that you may be mature and complete, not lacking anything. ⁵ If any of you lacks wisdom, you should ask God, who gives generously to all without finding fault, and it will be given to you. ⁶ But when you ask, you must believe and not doubt, because the one who doubts is like a wave of the sea, blown and tossed by the wind. ⁷ That person should not expect to receive anything from the Lord. ⁸ Such a person is double-minded and unstable in all they do.