In Christ, you grow stronger and are able to stand firm against the enemy.

“Yet the righteous will hold to his way, and he who has clean hands will be stronger and stronger.” (Job 17:10)
“Watch, stand fast in the faith, be brave, be strong.” (1Cor 16:13)
“Put on the whole armor of God, that you may be able to stand against the wiles of the devil.” (Eph 6:11)
“Finally, my brethren, be strong [endunamoo] in the Lord and in the power [kratos] of His might [ischus].” (Eph 6:10)
“Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand.” (Eph 6:13)
“Stand [histemi] therefore, having girded your waist with truth, having put on the breastplate of righteousness” (Eph 6:14)
Reading: Job 16-18; Acts 17