Holier Than Thou - Biblical Contradictions

Who was the father of Shelah -- Arphaxad or Cainan?

Genesis 10:24, "Arphaxad was the father of Shelah, and Shelah the father of Eber."

Genesis 11:12, "When Arphaxad had lived 35 years, he became the father of Shelah."

Luke 3:36, "...the son of Shelah, the son of Cainan, the son of Arphaxad, the son of Shem, the son of Noah, the son of Lamech..."

According to Genesis 10:24 and 11:12, Arphaxad was the father of Shelah, however, Luke 3:36 claims that Shelah was the son of Cainan and that Arphaxad was his grandfather.

"Sorrow is better than laughter: for by the sadness of the countenance the heart is made better. The heart of the wise is in the house of mourning; but the heart of fools is in the house of mirth." (Ecclesiastes 7:3-4, KJV)

"Then I commended mirth, because a man hath no better thing under the sun, than to eat, and to drink, and to be merry: for that shall abide with him of his labour the days of his life, which God giveth him under the sun." (Ecclesiastes 8:15, KJV)