"Never again will I curse the ground because of human beings, even though every inclination of the human heart is evil from childhood." Genesis 8:21 (TNIV)
For most of my life I have heard the argument about whether man is inherently evil or good. Is a child born good and then corrupted by their experiences in this world? Or is a child born inherently evil and will remain so until they accept Jesus as LORD and follow Him? Well, it would seem to me that the above verse answers that pretty clearly. If we believe that the Bible is truth--which it is--this verse clearly answers that question. Man is inherently evil and needs God to change His nature. Seems pretty clear to me.