Christians take care of their enemy's needs
Romans 12:20 (ASV)
20But if thine enemy hunger, feed him; if he thirst, give him to drink: for in so doing thou shalt heap coals of fire upon his head.
After Kamal's accident, he was taken in to recuperate by a Christian family in the USA. The great love shown him by this family was all too strange for Kamal who had been a Jihadist fighter from age seven. Yet this family trusted him—a merciless killer—and showered him with the most love.
When an atheist, who was well known for his hatred of Christianity and its adherents falls gravely ill, it was a believer from the faith he so desperately despised that came to his rescue when he was turned back from the hospital for lack of funds.
When a famine struck China, God's people took the opportunity presented the same people who loathed them—the selflessness of the Christian Spirit and by so doing were enabled to win many souls to Christ.