they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint. (Isa 40:31, KJV)

The eagle of the Alps is sometimes beaten down by the tempest into the narrow defiles of the mountains. Storm clouds shut in this mighty bird of the forest, their dark masses separating her from the sunny heights where she has made her home. Her efforts to escape seem fruitless. She dashes to and fro, beating the air with her strong wings, and waking the mountain echoes with her cries. At length, with a note of triumph, she darts upward, and, piercing the clouds, is once more in the clear sunlight, with the darkness and tempest far beneath. So we may be surrounded with difficulties, discouragement, and darkness. Falsehood, calamity, injustice, shut us in. There are clouds that we cannot dispel. We battle with circumstances in vain. There is one, and but one, way of escape. The mists and fogs cling to the earth; beyond the clouds God’s light is shining. Into the sunlight of His presence we may rise on the wings of faith. {Education 118.2}
Trusting in the Lord is the patient expectation that God will fulfill his promises in his Word and strengthen us to rise above life’s difficulties. Do you believe God loves you and wants the best for you? Can you relax, confident that his purposes are right? Are you convinced that he has the power to control all of life—and your life as well? Though your faith may be struggling or weak, accept his provisions and care for you. (Life Application Notes)
those who hope in the LORD will renew their strength. They will soar on wings like eagles; they will run and not grow weary, they will walk and not be faint. (isa 40:31, NIV)