What the Bible says about Pride as a Vine of Evil Fruit
(From Forerunner Commentary)
Here we see the very beginning of pride. The marginal reference reads, "your heart was made proud." In Job 41:34, as part of the description of Leviathan, Satan is called "king over all the children of pride." God describes no mere animal but rather uses an animal as a type of the Devil.
Satan's pride led him into war with God (Isaiah 14:12-14). He has passed this proclivity on to his "children," and their pride in turn leads them to divide from each other and enter into wars against each other as their father does. Pride is a vine that produces a multitude of evil fruits—so many that some call it "the father of all sin." As long as the seed of pride is alive, it has a very good chance of springing forth in ugly conduct.
John W. Ritenbaugh
Pride, Humility, and the Day of Atonement