Dear Curious Atheist. God created us Good, and we were, until temptation reared its ugly head. ( Adam and Eve are our proto-types) The Serpent was the tempter. God knew that we would succumb to temptation, and until then we were with God our Heavely Father. God had told Adam and Eve Not to eat of the Tree of Knowledge, but they disobeyed and paid the price, and were banished to Earth.
Instead of loving God, they, and all who came after, moved farther and farther away from God. In time Jesus came, and told us about our Heavenly Father, who loves us, and wants us back again. But Mankind would have to change, to be " Reborn," to learn to love God with all our hearts, with all our souls, and with all our minds. ALSO: Love our neighbour, ( fellow-men and fellow-women) AS WE LOVE OURSELVES.
Jesus told a Lawyer in St.Matthew: " The first and great Commandment is: Love God with all your heart, with all your soul, and with all your mind. The second is: " Love your neighbour as yourself." Then Jesus pointed out the importance of those two Commandments: " On them hang all the Law and the Prophets." God is Love, and God wants loving children/sons and daughters. We are on Earth to learn to become as God wants to be: Loving freely and selflessly, no conditions tagged on. Jesus our Saviour will help and guide us, in fact Jesus is The Way back to our Heavenly Father, who made us in His image. Earth is our School to learn to become as God wanted us from the very beginning.
Jesus will give us His Love and Joy, and the Holy Spirit inside us, will help, also. Jesus told us to" Ask and ye will receive," and then we thank God and share all Love and Joy with all around us. ( our neighbour) The Bible, God`s Word to Man, will tell you more in detail. I say this with love, Atheist. Greetings from Emmy, sister in Christ.