Barack Obama lets his faith show By: Carol E. Lee December 28, 2010 04:28 AM EST HONOLULU — President Obama’s trip to church Sunday followed a steady rebirth over the past three months in public expressions of his Christianity. Obama has publicly mentioned his “Christian faith” more times in the past three months than he has over the past year. He has more frequently cited passages of the Bible, including repeated references to the spirit of Genesis 4:9 — “I am my brother’s keeper; I am my sister’s keeper” — which was a mainstay of Obama’s 2010 campaign stump speech....