How do we know regeneration is necessary for understanding God?

According to Scripture, spiritual understanding cannot be achieved through human ability; it requires regeneration by the Holy Spirit. Scriptures like John 6:44 and 2 Corinthians 4:6 illustrate that only those whom the Father draws and enlightens will come to know Christ fully. The new birth gives believers ears to hear and hearts to understand the Gospel, which is described as the glorious knowledge revealed by God. Without this divine initiation, individuals remain blind to spiritual realities.