Strengthen the weak hands, and make firm the feeble knees.  Say to those who are fearful-hearted, “Be strong, do not fear! Behold, your God will come with vengeance, with the recompense of God; He will come and save you.”  Then the eyes of the blind shall be opened, and the ears of the deaf shall be unstopped. Then the lame shall leap like a deer, and the tongue of the dumb sing. 

Isaiah 35:3-5   (NKJV)