Strength is defined as to be strong in your faith that God is there for us to guide us through. Scriptures mentioned: Philippians 4:13 AMP, "I can do all things [which he called me to do] through him who strengthens and empowers me [to fulfill his purpose - I am self-sufficient in Christ's sufficiency; I am ready for anything and equal to anything through him who infuses me with inner strength and confident peace]." 

• 2 Corinthians 12:9 NLT, " Each time he said, "My grace is all you need. My power works best in weakness." So now I am glad to boast about my weaknesses, so that the power of Christ can work through me."