Matthew 6:1, 5-6 "Beware of practicing your righteousness before other people in order to be seen by them, for then you will have no reward from your Father who is in heaven…
… 5 "And when you pray, you must not be like the hypocrites. For they love to stand and pray in the synagogues and at the street corners, that they may be seen by others. Truly, I say to you, they have received their reward. 6 But when you pray, go into your room and shut the door and pray to your Father who is in secret. And your Father who sees in secret will reward you.