Scripture and Catholic teaching, however, do have public consequences because they guide us in how we should act in relation to one another. Again, Catholic social action, including political action, is a natural byproduct of the Church's moral message. We can't call ourselves Catholic, and then simply stand by while immigrants get mistreated, or the poor get robbed, or -- even more fundamentally -- unborn children get killed. If our faith is real, then it will bear fruit in our public decisions and behaviors, including our political choices.

Each of us needs to follow his or her own conscience. But conscience doesn't emerge miraculously from a vacuum. The way we get a healthy conscience is by submitting it to God's will; and the way we find God's will is by listening to the counsel of the Church and trying honestly to live in accord with her guidance. If we find ourselves frequently disagreeing, as Catholics, with the teaching of our own Church on serious matters, then it's probably not the Church that's wrong. The problem is much more likely with us.

In the end, the heart of truly faithful citizenship is this: We're better citizens when we're more faithful Catholics. The more authentically Catholic we are in our lives, choices, actions and convictions, the more truly we will contribute to the moral and political life of our nation.

Archbishop Charles J. Chaput is the Archbishop of Philadelphia.