Author Rosaria Butterfield says that being born with a sin nature is a little bit like inheriting a garden. In a radio interview Butterfield put it this way:

Let's say that you inherited an enchanting garden. And for 10 years, you just let it thrive. You let it do anything it wanted. You never pruned back the weeds. You never got rid of the pests. You never worked with the roses. You just let it quote-unquote "thrive."

And after 10 years, what is it? It's a disaster. It might even be way past the point of no return. And you go to a master gardener and you say, "Hey, this is not fair. I want my money back. I just did everything I could to let this garden thrive. I let it do exactly what it wanted." You know, the master gardener's going to laugh at you and say, "Buddy, gardens come with weeds! It's part of its nature and by failing to deal with that, you destroyed it."