It takes 21 days to develop a habit. Working on a specific activity or trait for 21 days straight is all we need.
When something becomes a habit, it is more like second nature, or perhaps first nature.
The amount of time necessary to reinforce the activity or trait depends on the dedication required to develop the habit.
Some habits are good and some are bad. Our greatest challenges involve breaking the bad habits. Leaders must develop the kind of habits that promote an influence toward godliness.