In the 4th Century A.D. the Roman emperor Julian was concerned about the spread of Christianity in his empire, and he was determined to revive the traditional Roman pagan religions.
In expressing his frustration at his seeming inability to stop the growth of Christian faith he wrote:
“Nothing has contributed to the progress of the superstition of these Christians as their charity to strangers. The impious Galileans provide not only for their own poor, but for ours as well.”
Julian failed. Christianity was irresistible.
Because no matter what charge could be made against the Christians, their charity to strangers and their provision for the poor, Christian and non-Christian alike, was evident for all to see.
It still can.