A Prayer for Protection from Psalm 91

Taken from pages 241-243 of Prayers That Avail Much
Commemorative Gift Edition, © 1997 by Word Ministries, Inc.
Father, I praise You that I dwell in the secret place of the Most High and that I shall remain stable and fixed under the shadow of the Almighty [whose power no foe can withstand]. I will say of You, Lord, "the Lord is my refuge and my fortress, my God; on Him I lean and rely, and in Him I confidently trust!" For then You will deliver me from the snare of the fowler and from the deadly pestilence. Then You will cover me with Your feathers, and under Your wings shall I trust and find refuge.

Your truth and Your faithfulness are a shield and a buckler to me. I shall not be afraid of the terror of the night, nor of the arrow (the evil plots and slanders of the wicked) that flies by day, nor of the pestilence that stalks in darkness, nor of the destruction and sudden death that surprise and lay waste at noonday. A thousand may fall at my side, and ten thousand at my right hand, but it shall not come nigh my dwelling. For You will give Your angels especial charge over me, to accompany, defend and preserve me in all my ways of obedience and service to You. Your angels shall bear me up on their hands, lest I dash my foot against a stone. I shall tread upon the lion and adder; the young lion and the serpent shall I trample underfoot. 

Because I have set my love upon You, therefore will You deliver me. You will set me on high, because I know and understand Your name. I have a personal knowledge of Your mercy, love and kindness. I trust and rely on You, knowing You will never forsake me, no, never. I shall call upon You, and You will answer me. You will be with me in trouble. You will deliver me and honor me. With long life will You satisfy me and show me Your salvation.

(Psalm 91 - taken from the Amplified Bible)