Christopher Hitchens was famous for his debating ploy with Christians, asking them to name one moral act that Christians can to that atheists cannot do.
Most are flumoxed.
Here's a reply a pal of mine would make:
Sorry Christopher, but your question is misconceived because Christians are capable of doing every moral act whereas atheists are incapable of doing anything morally right.
“There is no righteous person, not even one;
11 There is no one who understands,
There is no one who seeks out God;
12 They have all turned aside, together they have become [i]corrupt;
There is no one who does good,
There is not even one.”
13 “Their throat is an open grave,
With their tongues they keep deceiving,”
“The venom of [j]asps is under their lips”;
14 “Their mouth is full of cursing and bitterness”;
15 “Their feet are swift to shed blood,
16 Destruction and misery are in their paths,
17 And they have not known the way of peace.”
18 “There is no fear of God before their eyes.”
He also deals with the universal dilemma of the reflective person: "I do what I don't want to do, and don't do what I do want to do" Romans 7:21-25.
What's your solution, dead Christopher? Avoidance? Denial? Rejection of your own failings?