Of Men and Angels

Of Men and Angels is a Strangers mission in Red Dead Redemption 2. The quest becomes available during Chapter 5.

Story
While walking around in Saint Denis, Arthur will find Sister Calderón standing outside of the cathedral with a donation box asking for money and food for the poor. After walking up to the Sister, she and Arthur start talking about how similar they are and that by helping just a little can make a big impact on people. The Sister suggests that Arthur should donate some food to the poor and that she can still think terrible thoughts about him if that will make him happy.

Walkthrough
When the cutscene finishes, you have the option of either donating food or $10. Both options will give you positive honor.