The Amidah - called The Standing Prayer, was composed around 450 BCE, by the 120 Men of the Great Assembly, including Ezra and Nehemiah at the time of the rebuilding of the Temple. It was to be said while standing. Three (3) times a day at the hours of prayer: 9:00 am, 12:00 pm and, 3:00 pm.
FOR REPENTANCE: Bring us back, Our father, to Your Instruction; draw us near, Our King, to Your service; and cause us to return to You in perfect repentance. Blessed are You, Oh Lord, who delights in repentance.