The difference between confessional belief and convictional belief

Here is a good essay on the difference between confessional belief and convictional belief.  The following gives a good taste of it.

I’ve never heard my dad preach about the importance of self-reliance. Rather, he simply invested in several years worth of food storage and water, planted a garden and an orchard, purchased chickens, and learned how to care for bees. 

I’ve never heard my dad sermonize about caring for the elderly. Rather, he simply invited his mother-in-law to live in his house, spent hours remodeling the bathroom so she could more comfortably use it, remodeled her bedroom to give her more space, and is currently building a ramp so that she can drive her wheelchair into the backyard and enjoy the outdoors.