Practical Christianity is very similar to practical Judaism, and both of these religions are very similar to practical Islam. All three religions practice a theology that is God-sent. All three religions practice a theology that leads to eternal life. All three religions know that God is real, that eternity is real, and that heaven is here on earth. They know that heaven is a subset of the earth.
You may be part of a small Christian denomination, or a small Islamic sect that does not have all of the details of who God is, and who you are in relation to God. That is one of the reasons that the antichrist has been able to wreak havoc throughout the world. Unfortunately, there is very little repentance, solely because the ether knows that when the Lord God Almighty is forced to redeem the earth, it will be as if they had never sinned.
They assume that whatever sins they committed will be washed away with the tides of time. That is far from true. It is the degree of repentance, and the purity of the heart that will determine whether or not redemption will be available to any specific individual. Even the sons of God will not have redemption, until they have genuinely repented of all sin.
When everyone understands that the God of heaven expects genuine repentance, from the heart, they will know that it is impossible for anyone in the millennial kingdom of God to have redemption without their unconditional repentance. All have sinned, and therefore, all must repent. All must know only one God. All must know that the Lord God Almighty is El Shaddai. All must know truth. All must know love.
The Lord God Almighty El Shaddai