Isaiah 25 vs 12
And the fortress of the high fort of thy walls shall he bring down, lay low, and bring to the ground, even to the dust.
2 Corinthians 10 vs 3 - 5
3 - For though we walk (live) in the flesh, we are not carrying on our warfare according to the flesh and using mere human weapons. 4- For the weapons of our warfare are not physical [weapons of flesh and blood], but they are mighty before God for the overthrow and destruction of strongholds, 5 -Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ.