Mattithyahu (Matthew) 6:1-2, 4

“Beware of doing your kind deeds before men, in order to be seen by them. Otherwise you have no reward from your Father in the heavens. “Thus, when you do a kind deed, do not sound a trumpet before you as the hypocrites do, in the congregations and in the streets, to be praised by men. Truly, I say to you, they have their reward.

so that your kind deed shall be in secret. And your Father who sees in secret shall Himself reward you openly.