2 Corinthians 10:3

for tho' I am involv'd with the world, I don't sustain the war with their poor arts:

Romans 8:13

for if you lead a sensual life, you will be miserable: but if through the spirit you mortify the affections of corrupted nature, you will be happy.

2 Corinthians 10:4

our military arms are not so defective, but divinely effectual to demolish all their ramparts;

Galatians 2:20

I am crucified with Christ, it is not I that now live, but Christ that liveth in me; the life I have in this body I live by faith in the son of God, who loved me, and gave himself for me.

1 Timothy 1:18

This charge, my son Timothy, I recommend to you, agreeably to the prophetic gifts heretofore conferr'd on you, by virtue of which you might carry on a successful warfare,

2 Timothy 2:3-4

bravely endure hardships, like a soldier of Jesus Christ.

2 Timothy 4:7

I have struggled in a glorious cause: I have finish'd my career: I have stood to the faith:

Hebrews 12:1

Wherefore, since we are surrounded with so great a cloud of witnesses, let us lay aside every incumbrance, and the sin which does so easily embarrass us, and let us pursue with constancy the course that is proposed to us:

1 Peter 4:1-2

Since then Christ has with respect to his mortal nature died for us, arm yourselves with this reflection, that he, who is dead with respect to sensuality, has renounced sin;

Treasury of Scripture Knowledge

Summary

For though we walk in the flesh, we do not war after the flesh:

Bible References

Walk

Galatians 2:20
I am crucified with Christ, it is not I that now live, but Christ that liveth in me; the life I have in this body I live by faith in the son of God, who loved me, and gave himself for me.
1 Peter 4:1
Since then Christ has with respect to his mortal nature died for us, arm yourselves with this reflection, that he, who is dead with respect to sensuality, has renounced sin;

We do

2 Corinthians 10:4
our military arms are not so defective, but divinely effectual to demolish all their ramparts;
Romans 8:13
for if you lead a sensual life, you will be miserable: but if through the spirit you mortify the affections of corrupted nature, you will be happy.
1 Timothy 1:18
This charge, my son Timothy, I recommend to you, agreeably to the prophetic gifts heretofore conferr'd on you, by virtue of which you might carry on a successful warfare,
2 Timothy 2:3
bravely endure hardships, like a soldier of Jesus Christ.
2 Timothy 4:7
I have struggled in a glorious cause: I have finish'd my career: I have stood to the faith:
Hebrews 12:1
Wherefore, since we are surrounded with so great a cloud of witnesses, let us lay aside every incumbrance, and the sin which does so easily embarrass us, and let us pursue with constancy the course that is proposed to us: