Without God, there can be no morality
The majority of religious skeptics and critics I have spoken with say that they reject Christianity for rational reasons. When I ask them to explain further, they often reveal that their reasons are actually emotional roadblocks.
“If atheism is true, it is far from being good news. Learning that we’re alone in the universe, that no one hears or answers our prayers, that humanity is entirely the product of random events, that we have no more intrinsic dignity than non-human and even non-animate clumps of matter, that we face certain annihilation in death, that our sufferings are ultimately pointless, that our lives and loves do not at all matter in a larger sense, that those who commit horrific evils and elude human punishment get away with their crimes scot free — all of this (and much more) is utterly tragic.”
From knowledge of God’s enlightening truth into the darkness of ignorance and the confusion of depraved minds
Christian Case Makers often defend the faith on the basis of morality. They are commonly challenged in the same way.
Contemporary writers in ethics, who blithely discourse upon moral right and wrong and moral obligation without any reference to religion, are really just weaving intellectual webs from thin air; which amounts to saying that they discourse without meaning.