Noema (G3540) comes from noos (mind) and means a deliberate thought, scheme, or mental purpose. Paul uses it in 2 Corinthians for two different realities: God's peace that surpasses all noema (understanding), and Satan's noemasin (devices/schemes). The word bridges ordinary cognition and strategic intent.
2 Corinthians 2:11 warns against being outwitted by Satan 'for we are not ignorant of his noemasin [schemes].' 2 Corinthians 10:5 calls believers to 'take every noema captive to make it obedient to Christ.' The spiritual battlefield is the mind โ every thought must be examined and submitted. Philippians 4:7 promises God's peace will 'guard your hearts and your noemata.'