7 years of weekly jogging, still requires weekly jogging to maintain one's physical fitness. Even though one has repeated "the same" activity for 7 years. Likewise as Christians, we may review passages on prayer, faith, love, joy, generosity, labor, and godliness for 7 years; and from a mental capacity think that this is "old information" (like jogging), yet to maintain spiritual health and fitness we continue our weekly studies of God's Word. (our continued jogging, so to speak.). May we run the race with endurance.