MATTITYAHU 6

6 But you, whenever you daven, enter into the secret place, your secret cheder, and, having shut your door, offer tefillos to your Av Asher b’Seter (Father Who is in Secret), and your Av haRoeh b’seter (Father, the One seeing in secret)*6:6 His sachar will give you.

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.