Necessity of Owning Observance, Putting Passion Into It

The Talmud in multiple locations warns us against a mitzvah haba’a ba’avera, a mitzvah ensconced in a transgression. If we have stolen assets, how dare we use them to purchase a lulav, or a sukkah, or even make a charitable contribution to a worthy cause? The Torah refuses to assign holiness to objects that have come into our hands through forbidden means.