Yesterday, we were encouraged to think of hardship suffered for the sake of Christ as discipline: training that produces endurance and helps us to remain faithful. More than that, it’s evidence we’re true children of God, since parents discipline their children. Today, the writer urges us to live in light of that.12:12 Therefore, strengthen your feeble arms and weak knees.
This is the first of two Old Testament references here, both involving the image of lameness. It’s from Isaiah: