From Psalm 28:8 - it made me ask, "Who are you trusting for strength?"
Does He ask me to develop my strength, or to rest in His? Perhaps both?
But perhaps developing MY strength doesn't mean doing some sort of spiritual workout (I've tried that - it is a hopeless place!) The internal "task masters" are never satisfied; yet I must find a way to "master", to overcome, them. A person's true strength grows in direct proportion to his reliance on the Lord. I need to continually decrease my trust in the "arm of the flesh" in order that there is more space for the "arm of the Lord" in my life!
Who has believed our message? And to whom has the arm of the LORD been revealed? Isaiah 53:1
In every situation, Jesus is enough. I can agree with the task masters, I am never enough...but He is!
When I gain His perspective, I trust that His way, His power, His nature - is enough.
And He has said to me, "My grace is sufficient for you, for power is perfected in weakness."
Most gladly, therefore, I will rather boast about my weaknesses,
so that the power of Christ may dwell in me.
2 Corinthians 12:9
His grace is freely given, available to all...it is really a matter of receiving it and learning to walk in it daily...that is how He becomes the strength of His people!