Matthew 6:2-4

2“So whenever you give to the poor and do acts of kindness, do not blow a trumpet before you [to advertise it], as the hypocrites do [like actors acting out a role] in the synagogues and in the streets, so that they may be honored and recognized and praised by men. I assure you and most solemnly say to you, they [already] have their reward in full.

3But when you give to the poor and do acts of kindness, do not let your left hand know what your right hand is doing [give in complete secrecy],

4so that your charitable acts will be done in secret; and your Father who sees [what is done] in secret will reward you.