Matthew 6:2
Thus, when you give to the needy, sound no trumpet before you, as the hypocrites do in the synagogues and in the streets, that they may be praised by others. Truly, I say to you, they have received their reward. The hypocrites — the Greek word means actors performing a role — give in a way that ensures their giving is visible and praised. The sounding of a trumpet before giving to the poor may be literal (some scholars think it refers to trumpet-shaped collection containers in the temple) or figurative. Either way, the giving is designed for maximum visibility. They have received their reward communicates that human praise is a real reward — they got what they were seeking. But it is the only reward they will receive; the Father's reward, which is what the disciple community seeks, has been forfeited.