2 Corinthians 10:4

For the weapons of our warfare are not like the world's [i.e., which rely on human ingenuity and unspiritual principles], but they are empowered by God to overthrow [Satanic] fortifications.

Ephesians 6:10-11

Finally, be [spiritually] strong in the Lord and in His mighty power.

Treasury of Scripture Knowledge

Summary

{A Psalm of David.} Blessed be the LORD my strength, which teacheth my hands to war, and my fingers to fight:

Bible References

Teacheth

2 Corinthians 10:4
For the weapons of our warfare are not like the world's [i.e., which rely on human ingenuity and unspiritual principles], but they are empowered by God to overthrow [Satanic] fortifications.
Ephesians 6:10
Finally, be [spiritually] strong in the Lord and in His mighty power.