'Strength' in the Bible

And He will also confirm you to the end [keeping you strong and free of any accusation, so that you will be] blameless and beyond reproach in the day [of the return] of our Lord Jesus Christ.

No temptation [regardless of its source] has overtaken or enticed you that is not common to human experience [nor is any temptation unusual or beyond human resistance]; but God is faithful [to His word—He is compassionate and trustworthy], and He will not let you be tempted beyond your ability [to resist], but along with the temptation He [has in the past and is now and] will [always] provide the way out as well, so that you will be able to endure it [without yielding, and will overcome temptation with joy].

It is sown in dishonor, it is raised in glory; it is sown in weakness, it is raised in strength;

Be on guard; stand firm in your faith [in God, respecting His precepts and keeping your doctrine sound]. Act like [mature] men and be courageous; be strong.