Matthew 6:5-8

Also when you pray, you must not be like the hypocrites, for they love to pray standing in the synagogues and on the corners of the streets, that they may be seen by people. Truly I tell you, they have their reward in full already. But when you pray, go into your [most] private room, and, closing the door, pray to your Father, Who is in secret; and your Father, Who sees in secret, will reward you in the open. And when you pray, do not heap up phrases (multiply words, repeating the same ones over and over) as the Gentiles do, for they think they will be heard for their much speaking. [I Kings 18:25-29.] Do not be like them, for your Father knows what you need before you ask Him.