Well, it’s not the only moral instruction in the Bible, to put it mildly. Consider also the story of the Good Samaritan: Jesus tells the story of a person who

Well, it’s not the only moral instruction in the Bible, to put it mildly. Consider also the story of the Good Samaritan: Jesus tells the story of a person who goes out of his way to help someone in need. He incurs risk (helping the man meant risking getting caught in an ambush), expense (oil and wine for the wounds plus paying the innkeeper), and inconvenience (he had to interrupt his journey to help). Jesus tells us this is how we should treat our neighbor. The Samaritan is also assuredly not Christian so isn’t doing this to gain eternal life in heaven through faith in Jesus. It’s pretty obvious and indisputable altruism.