Pheugo (G5343) is a strategy, not a weakness. Paul commands believers to pheugo from certain dangers โ sexual immorality (1 Corinthians 6:18), idolatry (1 Corinthians 10:14), love of money (1 Timothy 6:11), youthful lusts (2 Timothy 2:22). This is not cowardice but tactical wisdom โ recognizing that some battles are won by running, not fighting.
Joseph is the Old Testament prototype: he fled from Potiphar's wife physically (Genesis 39). Paul makes it a command: 'Flee [pheugete] sexual immorality.' James 4:7 pairs it with resistance: 'Resist the devil, and he will flee [pheuxetai] from you.' The same verb for fleeing temptation is used for the devil fleeing the resistant believer. The Christian knows when to run and when to stand.