Our greatest Advent challenge seems to be the need to face the truth about ourselves. Both Isaiah and John tell us some very unflattering things about who we are and what we are capable of doing. Truth be told, all of us some of the time and some of us all of the time are in radical denial about the situation of our planet, our nation, and our lives. For example, like the people who heard John, we can claim an entitlement that keeps us from becoming the prepared and faithful people God calls us t…