The following is based on Philippians 4:6-7:

“Fear tolerated is faith contaminated” is a well-known minister’s saying…
derived from “Have no anxiety about anything,” Biblical advice, before and after praying.

“But, in everything, by prayer and supplication…with thanksgiving,
let your requests be made known to God,” which is His instruction on living.

“And the peace of God which passes all understanding, will (assuredly) keep…
your hearts and minds in Christ Jesus,” guarded from concerns that seem so deep.

P. A. Oltrogge

(The quote, “Fear tolerated is faith contaminated,” is by Kenneth Copeland, http://www.kcm.org)

“Have no anxiety about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God.  And the peace of God, which passes all understanding, will keep your hearts and your minds in Christ Jesus.” Philippians 4:6-7 RSV

“Do not be anxious or worried about anything, but in everything (every circumstance and situation) by prayer and petition with thanksgiving, continue to make your (specific) requests known to God. And the peace of God (that peace which reassures the heart, that peace) which transcends all understanding, (that peace which) stands guard over your hearts and your minds in Christ Jesus (is yours). Philippians 4:6-7 AMP

“Boast in His holy name; Let the heart of those who seek the Lord be joyful.” 1 Chronicles 16:10 NASB

“But as for me, I will sing of Your strength; Yes, I will joyfully sing of Your faithfulness in the morning, For You have been my refuge And a place of refuge on the day of my distress.” Psalm 59:16 NASB

“But the righteous will be joyful; they will rejoice before God; Yes, they will rejoice with gladness.” Psalm 68:3 NASB

And he said, ‘Do not be afraid, for those who are with us are greater than those who are with them.'”  2 Kings 6:16 NASB

“When you lie down, you will not be afraid; When you lie down, your sleep will be sweet.” Proverbs 3:24 NASB

“Therefore I exhort first of all that supplications, prayers, intercessions, and giving of thanks be made for all men, for kings and all who are in authority, that we may lead a quiet and peaceable life in all godliness and reverence. For this is good and acceptable in the sight of God our Savior, who desires all men to be saved and to come to the knowledge of the truth.  For there is one God and one Mediator between God and men, the Man Christ Jesus, who gave Himself a ransom for all….” 1 Timothy 2:1-5 NKJV