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 THE MESSIANIC KING: Speedily cause the offspring of Your servant David to flourish, and let Him be exalted by Your saving power, for we wait all day long for Your salvation. Blessed are You, Oh Lord, who causes salvation to flourish.