Well I am an atheist myself, but the key is that in the old testament god gave every human the blame for the original sin.
And the special thing with Jesus dying and taking all sins with him is, that now god won't hate every human just because Adam and Eve stole some fruits.
This some weird story but yeah. Basically after Jesus, god wasn't that angry anymore.
It depends.
You don't want to write Java or kotlin in a text editor and gather the terminal commands for compiling and stuff when you could use an ide for that.
However there is not much difference writing C in an editor and compile it with make than using an ide. But in both cases I would prefer an ide.
The only reason why I would not use one is when there are incompatibilities or other special setups that make using an ide more work than an editor