He said to him, “See that you say nothing to anyone, but go show yourself to the kohen. Then, for your cleansing, offer what Moses commanded, as a testimony to them.”
So whenever you do tzadakah, do not sound a trumpet before you as the hypocrites do in the synagogues and on the streets, so that they may be glorified by men. Amen, I tell you, they have their reward in full!