Kevin McKay reflects on how biblical theology has transformed his preaching and pastoring. Early in ministry, though he believed in the power of preaching, his sermons were often information-heavy and unclear—like “a mother bird regurgitating” facts from commentaries. What he lacked was a grasp of how the whole Bible fits together. Learning biblical theology changed everything: it gave power both to his preparation and his preaching.

In preparation, biblical theology acts like “jumper cables.” It helps him quickly locate a passage within the Bible’s storyline, uncover hidden details, find the author’s main point, and build excitement for difficult texts. It also gives him confidence to preach books he once avoided—Song of Songs, Hebrews, and even Leviticus—because he now expects rich connections to Christ. Biblical theology sustains his soul by continually showing him that Scripture is one unified story written by God, always leading him back to the gospel.

In preaching, biblical theology helps his people see Jesus everywhere, follow the author’s true intent, and hear applications with theological depth. It keeps sermons from becoming moralistic and ensures that God—not the preacher—takes center stage. Ultimately, biblical theology empowers both preacher and congregation by magnifying Christ in all of Scripture.