Mattityahu 6:7-9

Orthodox Jewish Bible

⁷ But when you daven, do not babble on and on maarich (extended, long winded) and vacuously and without kavvanah (heartfelt direction, intention) like the Goyim. For the Goyim think that in their verbosity their techinnah will be heard.

⁸ Therefore, nisht azoi (not so)! Be different, for your Av has daas (knowledge) of what things you have need before you ask Him.

⁹ Therefore, when you offer tefillos, daven like this, in this manner: Avinu shbaShomayim (Our Father in heaven), yitkadash shmecha (hallowed be your Name).