Matthew 6:1, 3-4, 6-8

“Take heed that you do not do your charitable deeds before men, to be seen by them. Otherwise you have no reward from your Father in heaven.

But when you do a charitable deed, do not let your left hand know what your right hand is doing, that your charitable deed may be in secret; and your Father who sees in secret will Himself reward you openly.

But you, when you pray, go into your room, and when you have shut your door, pray to your Father who is in the secret place; and your Father who sees in secret will reward you openly. And when you pray, do not use vain repetitions as the heathen do. For they think that they will be heard for their many words. “Therefore do not be like them. For your Father knows the things you have need of before you ask Him.