In the fear of the Lord is strong confidence: and His children shall have a place of refuge (Proverbs 14:26 KJV)

The Lord God, the Holy One of Israel, says: Only in returning to Me and waiting for Me will you be saved; in quietness and confidence is your strength. (Isaiah 30:15 TLB)

Being confident of this, that He who began a good work in you will carry it on to completion until the day of Christ Jesus. (Philippians 1:6 NIV)

Have no fear of sudden disaster or of the ruin that overtakes the wicked , for the Lord will be your confidence and will keep your foot from being snared. (Proverbs 3:25-26 NIV)

Dear friends, if our hearts do not condemn us, we have confidence before God and receive from Him anything we ask, because we obey His commands and do what pleases Him. (1 John 3:21-22 NIV)

This is the confidence that we have in Him, that, if we ask anything according to His will, he heareth us; And if we know that he hears us, whatsoever we ask, we know that we have the petitions that we desired of Him. (1 John 5:14-15 KJV)