Faith-building scriptures to speak over doubt You can read these aloud memorize them or write them in your journal when doubt creeps in Mark 9:24 "Lord I believe; help my unbelief." James 1:6 "But when you ask you must believe and not doubt." Proverbs 3:5 and 6 "Trust in the Lord with all your heart and lean not on your own understanding." Hebrews 11:1 "Now faith is the substance of things hoped for the evidence of things not seen." Isaiah 26:3 "You will keep in perfect peace those whose minds are steadfast because they trust in you." second Corinthians 5:7 "For we walk by faith not by sight." Romans 10:17 "Faith comes by hearing and hearing by the Word of God." Psalm 46:10 "'Be still and know that I am God.'" Philippians 4:6 and 7 "'Do not be anxious about anything,' and 'The peace of God will guard your hearts and your minds in Christ Jesus.'