The Bible is the necessary logical, philosophical, and objective explanation for human existence and human knowledge.
All other philosophies, religions, and systems of thought fail in some way, whether because they are self-contradictory and result in skepticism ("knowledge is impossible")—which is also self-contradictory—or because they fail to produce enough knowledge.
In other words, human intelligence, reason, and rationality depend upon God and the Bible through which God has chosen to reveal Truth.