How does Adam Trask represent the theme of good?

Adam Trask, one of the protagonists of East of Eden, is an honest man who transforms from a dreamy-eyed youth into a deeply caring father to Cal and Aron.

The son of Cyrus Trask, Adam falls in love with Cathy Ames when she wanders onto his farm. A representation of the biblical character Abel, who was stoned to death in a jealous rage by his brother Cain, his deathbed blessing of his son Cal validates timshel, a concept that denies the notion of predestination and authorizes free choice.