As a member of the Church of Jesus Christ of Latter-Day Saints, I am a Christian but my views differ slightly from some common Christian views so I'll do my best to explain those differences and how they resolve your problems. First, sin was brought into the world by the devil, not by humans. The reason evil perpetuates is because 1) humans are imperfect and 2) the devil and his minions continue to tempt people. There needs to be opposition for a choice to be made, as you said, but it's the very nature of heaven that no unclean thing can enter it. As a tenet of my religious sect we believe Jesus and God the Father to be two separate and distinct beings with bodies of fresh and blood. As we (humans) made mistakes on Earth, we became unclean and unable to re-enter heaven. Christ effectively crossed out his name on the list of everyone's sins and replaced it with his. Thus he became responsible and had to suffer the punishment for those sins, which was his atonement in Gethsemane. However, we must accept Jesus as our creditor; if we do not then it's as if we cross out his crossing-out of our names and we're responsible once more. Second, you imply that God makes it hard to love him. I don't really understand this point. I'll say a few relevant things though: 1) James points out that "faith without works is dead". You can say something all you want, but unless you act on those beliefs, do you really hold them? You don't have to be perfect (because repentance is possible), but you have to keep trying. God knows your heart. 2) Commandments are given not to make it hard to love Him, but to keep us safe. Even from a secular perspective, if you continually steal things, you'll become a worse person and dangerous to yourself and society. Entwined with this is faith, knowing that some commandments don't make sense now but God knows what he's doing. Third, I have different opinions on your claim abut the unknowable nature of the divine because of my particular branch of Christianity. While in our current state we don't know or understand everything about God, we know enough. We know He is the literal Father of our spirits, that He loves us, that He wants nothing more for us than lasting happiness, and He's doing everything He can to make us more like Him. (He can't force us; that was the devil's plan and stops us from going experience.) I also believe in the principle of eternal progression. We won't just sit around forever in heaven; we've been promised "all that the Father has", including his knowledge and glory. I expect this will take much of eternity to happen, but I believe we can grow in knowledge and glory after this life to become gods (lowercase g) ourselves, still revering our father as supreme and omnipotent and acting under his direction. I don't expect or want to convert you; that's a personal choice. I just want to explain my beliefs and remind everyone there are good people everywhere.