1. Bible teachings about failure / becoming strong
"Therefore let him who thinks he stands take heed lest he fall.
No temptation has overtaken you except such as is common to
man;
but God is faithful, who will not allow you to be tempted beyond
what you are able, but with the temptation will also make the
way of escape,
that you may be able to bear it."
1 Corinthians 10:12-13 (NKJV)
"My flesh and my heart may fail, but God is the strength
of my heart and my portion forever."
Psalm 73:26 (NASB)
Through the LORD’s mercies we are not consumed,
because His compassions fail not. They are new every morning;
Great is Your faithfulness."
Lamentations 3:22-23 (NKJV)
“But forget all that—it is nothing compared to what I am going
to do. For I am about to do something new. See, I have already
begun! Do you not see it? I will make a pathway through the
wilderness. I will create rivers in the dry wasteland."
Isaiah 43:18-19 (NLT)
For the vision is yet for the appointed time; it hastens toward
the goal and it will not fail though it tarries, wait for it; for it will
certainly come,
it will not delay."
Habakkuk 2:3 (NASB)

2. We are hard pressed on every side, but not crushed; perplexed,
but not in despair; 9
persecuted, but not abandoned; struck
down, but not destroyed.