2 “So when you give to the poor, do not sound a trumpet before you, as the hypocrites do in the synagogues and in the streets, so that they may be honored by men. Truly I say to you, they have their reward in full. 3 But when you give to the poor, do not let your left hand know what your right hand is doing, 4 so that your giving will be in secret; and your Father who sees what is done in secret will reward you. Matthew 6:2-4
If you triumph your own good deeds, you did not do them out of the goodness of your heart as you receive your reward from your peers. A true good deed is done in secrecy without accolades from your fellow men.