From Carl Sandburg:
Henry C. Deming, Congressman from Connecticut, reported that when Lincoln was asked why, with his obvious interest in religious matters and his familiarity with the Bible, he did not join a church, Lincoln replied:
When any church will inscribe over its altars, as its sole qualification for membership, the Savior’s condensed statement for the substance of both law and gospel, “Thou shalt love the Lord thy God with all they heart, and with all thy soul, and with all thy mind, and thy neighbor as thyself,” that church wil I join with all my heart and soul.
Ah, I love that fellow Illinoisan.