Invisible fathers

I have a little desktop calendar that has a little quote, story, or proverb for dads each day of the year. Today's:

All fathers are invisible in daytime; daytime is ruled by mothers and fathers come out at night. Darkness brings home fathers, with their real, unspeakable power. There is more to fathers than meets the eye.
— Margaret Atwood, author, The Cat's Eyes

I work all day long, but I know when I step through the door and hear my son exclaim, "Daddy's home!" that I have just clocked in. Two hours a night, and two days a week, for 18 years. Those are my hours, and there is much to be done within them. I am a father, and my boss is the Creator of galaxies and children. My job is simple, though not easy. By God's grace, I am to take my young, immature children and train them to become wise, righteous adults who love, worship, and serve the Lord. In a way that may be peculiar only to parenting, the work is also the paycheck.

The father of a righteous man has great joy;
     he who has a wise son delights in him.
- Proverbs 23:24 (NIV)