The phrase — when we have done all we know to do, we must keep standing — emphasizes the importance of perseverance and resilience in the face of adversity. It suggests that, in times of difficulty, we should continue to stand strong even after exhausting our knowledge and resources. 

Inner strength:
This concept is deeply ingrained in many spiritual teachings, which encourage individuals to maintain faith, hope, and determination in challenging circumstances. One of the key aspects of this concept is the idea of inner strength. 

Character:
Life often presents us with obstacles and hardships that test our resolve. In these moments, it is crucial to tap into our inner resources, such as our values, beliefs, and sense of purpose, to stay grounded and maintain our determination. Recognizing that we have done all we know to do, and yet continuing to stand, can be a testament to our character and a source of inspiration for others facing similar challenges. 

Growth:
Additionally, "keep standing" implies the importance of learning from our experiences and growing as individuals. When we face adversity, it is an opportunity for personal development and self-discovery. By staying committed to our path and trusting in our abilities, we become more resilient and better equipped to handle future challenges. This growth mindset encourages us to experience and grow as individuals and to view setbacks as temporary hurdles. It fosters a sense of optimism and hope in the face of adversity. 

In the end, the message of the Scripture is a powerful reminder to maintain faith, embrace personal growth, and draw upon our inner strength as we navigate the challenges that life presents.

Just a thought,
PSS