2 Timothy 2:15 implies there is a "rightly" dividing and thus, conversely, a "wrongly" dividing way to understand scripture and an imperative to "STUDY" to show ones self "approved." See C. I. Scofield's, "Rightly Dividing the Word of Truth." It's approximates the origin point of understanding this clear understanding that fully embraces Israael in end time prophecy.