Physical exercise is a relatively new concept in America. If you remember Jack LaLanne, then you know that in the 1960’s there were not many people that believed they needed regular physical exercise and fitness centers were exclusive clubs for the rich and famous. The information age has turned the majority of people into couch potatoes that rarely break a sweat without an intentional effort. It takes work to keep your body strong, especially if you want to be active in your later years.
Speaking to the LORD in Psalm 138, David said, “In the day when I cried thou answeredest me, and strengthened me with strength in my soul” (Psalm 138:3). The word soul or nephesh in Hebrew is also translated as life and person (5315). The word nephesh is derived from the word naphash which means to breathe (5314), so you could say in one sense that naphash refers to having breath in you or being alive.
When David said that the LORD strengthened him with strength in his soul, he meant that the LORD gave him a sense of vitality and exuberance toward life. The Hebrew word translated strength is also translated as power, might, and boldness (5797). In order for David to be strong in his soul, he had to exercise, he had to do what the LORD instructed him to do in his word.
David not only listened to the LORD, he did what the LORD told him to do, even when it seemed impossible. David said, “Thou hast beset me behind and before, and laid thine hand upon me. Such knowledge is too wonderful for me; it is high, I cannot attain unto it” (Psalm 139:5-6). The word translated wonderful, paliy is derived from the word pala which means to be beyond one’s ability to do (6381). David did not let the thought of impossibility stop him from doing what the LORD asked him to do. David realized that “although something may appear impossible to man, it still is within God’s power” (6381).
The thing that motivated David to exercise his soul was an awareness that God knew and understood him completely. David said, “O LORD, thou hast searched me, and known me. Thou knowest my downsitting and my uprising, thou understandest my thought afar off. Thou compassest my path and my lying down, and art acquainted with all my ways” (Psalm 139:1-3).
Thinking of the LORD as the trainer of his soul, David was willing to yield his life to the expert. David knew that the LORD wanted him to be a mighty warrior on the inside as well as on the outside. “The Hebrew system of thought does not include the opposition of the terms ‘body’ and ‘soul,’ which are really Greek and Latin in origin. The Hebrew compares/contrasts ‘the inner self’ and ‘the outer appearance’ or, as viewed in a different context, ‘what one is to oneself’ as opposed to ‘what one appears to be to one’s observers.’ The goal of Scriptures is to make the inner and outer consistent (5315).