Where it is written in bible only pray pray pray is worship to God?

Why people only pray pray pray pray pray?
Update: Do people think God is deaf? Why people tell their problems to him again and again and again. What do people think? Does he have no ability to understand his creations?
Update 2: In our culture it is written he can understand everything without speaking. But people still believe only pray is the solution to the very problem. Prayers cannot clear anyone's accounts of deeds.
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