A.W. Pink
None but the Spirit of Truth can write God's Law on my heart. Here, then, is the first and most essential qualification for understanding and interpreting the Scriptures, namely a mind illuminated by the Holy Spirit.

For the weapons of our warfare are not of the flesh but have divine power to destroy strongholds. We destroy arguments and every lofty opinion raised against the knowledge of God, and take every thought captive to obey Christ.
2 Corinthians 10:4-5