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There is only one way to heaven, and it is not by the actions of man. It is all of those that God gave to his Son to die for their sins, and all that he died for will live in heaven with him, without the lose of even one. ( John 6 ). Those that will inter heaven are counted as the sand of the seashore and the stars in the heavens, enumerable. Gen 32:12, I surely do thee good, and make thy seed as the sand of the sea, which cannot be numbered for multitude. Rom 9:7, Neither, because they are the seed of Abraham, are they all children, but in Isaac shall thy seed be called, and continue through verse 11. In Matt 5, talking about the wide gate and the strait gate. Many ( God's children who have a lack of knowledge of Jesus's doctrine, and are believing and preaching a false doctrine ) go in thereat, which leads to destruction ( result of preaching a false doctrine ). The strait gate and narrow way are those children of God who have been revealed the truth of Jesus's doctrine. This way leads to a more satisfying and contented life as they live here on earth. Those that go into the strait gate do not have to worry that their children are eternally lost if they are not going to church, not obeying some of God's commandments, such as is the destruction of those that are believing a false doctrine.
I think you need to think deep and hard what kind of person your making god appear to be to the universe.