While it is true that we need to put ourselves first, and while we need to make sure that the needs of our own people are met, here is what the Bible says in regard to helping other people, along with what the Bible says in Mathew 25; 31-46 about helping the poor and the needy.
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Do nothing from selfishness or empty conceit, but with humility consider one another as more important than yourselves; do not merely look out for your own personal interests, but also for the interests of others. - Philippians 2:3-4
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Christians are supposed to help each other.
But so too are we supposed to help our 60,000 homeless people on the streets of Los Angeles, we need to help others, but so too must we help our own homeless people.
Salute,
Tony V.