Isaiah 40:28-31 (KJV)
Hast thou not known? hast thou not heard, that the everlasting God, the Lord, the Creator of the ends of the earth, fainteth not, neither is weary? there is no searching of his understanding.  He giveth power to the faint; and to them that have no might he increaseth strength.  Even the youths shall faint and be weary, and the young men shall utterly fall:  But 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.
Information impacts our feelings, emotions, and disposition. What we know and hear affects the way we think or react. Our Faith is strengthened or weakened by what we hear, especially when it comes from a reliable source.
God invokes the greatness of His power, the excellence of His majesty and the consistency of His nature when He asked: ” Have you not heard, have you not known, that the Everlasting God, the Creator of the Ends of the Earth never sleeps nor slumber; there is no searching of His understanding.”
Am not sure what is going on in your life currently but I dear you to look to God with a firm FAITH. God never fails, He will come through.
You may be weary and tired, I have been there myself and time and time again but God has never failed to supply me the strength that I need to pull through.
You may be down and out completely, no way out. It seems the walls are closing in on you. God does renew your strength. His Commitment to provide what you exactly need is unequal to anything you may have experienced.
Let your heart find comfort in who you know God to be. Don’t give out. Don’t give up. The battle is already won. Stand and enforce your victory. Remember that those who quit are unable to be fruitful.