My parents had very different approaches to discipline. Dad grounded me once for the rest of my life. I guess he didn’t notice that at some point I snuck out of the house, got married, and lived my own life. Mom, however, did not play so loosely with me. She grounded me once for two weeks and I was stuck at home with no t.v. until I had served my time – to the minute. Yep, she wrote it down and held me to it. Dad disciplined in anger, and once his anger had passed, he stopped paying attention. Mom disciplined with a purpose, to teach me that I had best plan to make it home by curfew.
The writer of Hebrews said that, as hard as it may be, God, too, disciples with a purpose. We touched on verse 10 last time: “God disciplines us for our good, that we may share in His holiness.” Verse 11 says that God’s discipline “produces a harvest of righteousness and peace.” So God’s purposes are holiness, peace, and righteousness. But look at one other thing in verse 11 – these are benefits “for those who have been trained by it.” My Dad’s discipline was reactionary, Mom’s discipline was to train me to pay attention to the clock. God’s discipline is a training ground.
Now you can look at me and see that I’m not into physical training, but I sure need to be. I need to develop the discipline of exercise and better eating habits so that I enjoy the benefits of more energy and strength. But I’m flabby and out of shape. The writer has a word for me: “Therefore, strengthen your feeble arms and weak knees” (v. 12). Now we know he is not talking about the physical but the spiritual. This comes as Isaiah is prophesying the Babylonian captivity for the nation of Judah. The first part of this book is warnings and woes, but then the tone changes as God promises comfort and restoration. And Joy. He declares to the fearful and weary captives, “Be strong, do not fear; your God will come . . . He will come to save you” (Is 35:4).
So as we’re lifting weights let’s lift high the name of Jesus. While we’re running in place on the treadmill, let’s run away from temptation. When we exercise to strengthen our core, we need to also “be strong in the Lord and in His mighty power” (Eph 6:10). The benefits of God’s discipline are worth all the sweat and strain. As my Mom would say – this is for your own good Beloved – and also for God’s glory.