Isaiah 6:9-10
And He said, “Go, and tell this people: Keep on listening, but do not understand; keep on looking, but do not comprehend. Make the heart of this people insensitive, their ears dull, and their eyes dim, otherwise they might see with their eyes, hear with their ears, understand with their hearts, and return and be healed.

The Bible says to renew our minds every day to the Word, so we don’t forget. Time will defeat our hearts and minds if we don’t keep them fresh with the Word. As sin creeps into our hearts, we become dull and can no longer see, hear, and understand God. When we keep our hearts intentionally faithful to the Word of God, we will not be overcome.