“Psalm 91” is a declaration of faith that God will protect His people. All who by faith choose God as his protector can, without fear of harm, rest in the knowledge that if trouble and affliction comes, it will not be for hurt. Whatever is done, our heavenly Father’s will is done; and we have no reason to fear. God’s people shall see that His promises will be fulfilled. There is no better description of this declaration of faith than Eugene Peterson’s The Message interpretation of Psalm 91.

You who sit down in the High God’s presence, who spend the night in Shaddai’s  shadow say this: “God, you’re my refuge. I trust in you and I’m safe!”

That’s right—he rescues you from hidden traps, shields you from deadly hazards. His huge, outstretched arms protect you—under them you’re perfectly safe; his arms fend off all harm. Fear nothing—not wild wolves in the night, not flying arrows in the day, not disease that prowls through the darkness, not disaster that erupts at high noon.
Even though others succumb all around, drop like flies right and left, no harm will even graze you. You’ll stand untouched, watch it all from a distance, watch the wicked turn into corpses. Yes, because God’s your refuge, the High God your very own home, Evil can’t get close to you, harm can’t get through the door.
He ordered his angels to guard you wherever you go. If you stumble, they’ll catch you; their job is to keep you from falling. You’ll walk unharmed among lions and snakes, and kick young lions and serpents from the path.

“If you’ll hold on to me for dear life,” says God, “I’ll get you out of any trouble. I’ll give you the best of care if you’ll only get to know and trust me. Call me and I’ll answer, be at your side in bad times; I’ll rescue you, then throw you a party. I’ll give you a long life, give you a long drink of salvation!”