A Muslim can obey out of selfish purposes, such as a desire to avoid hell or obtain heaven, or he can obey out of a selfless desire to please God. So theism, as in the case of Islam, offers a more deeply grounded form of altruism. But the Christian model of theism goes further still. Much further. Remember that the eternal love of God is intrinsic to who he is; each person of the Trinity loves the others selflessly. It was out of this selfless love that God created mankind. In other words, we were made in the image of a selfless, loving God, so in our very nature we are designed to be selfless
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