"Surely I was sinful at birth, sinful from the time my mother conceived me." Psalm 51:5
"David does not confess himself guilty merely of some one or more sins--but that from his mother's womb he has brought forth nothing but sin, and by nature is wholly corrupt, and, as it were, immersed in sin. (John Calvin)"
"Every inclination of his heart is evil from childhood." Genesis 8:21
"We too all previously lived among them in our fleshly desires, carrying out the inclinations of our flesh and thoughts, and by nature we were children under wrath, as the others were also." Ephesians 2:3