Holier Than Thou - Biblical Contradictions

If God told Adam he would die after eating the forbidden fruit, then why didn't he?

Genesis 2:6-7, "And the LORD God commanded the man, 'You are free to eat from any tree in the garden; but you must not eat from the tree of the knowledge of good and evil, for when you eat of it you will surely die.' "

Genesis 5:5, "Altogether, Adam lived 930 years, and then he died."

According to the second chapter of Genesis, God promised Adam that if he ate from the tree of the knowledge of good then he would die, however, he ate from it and went on to live 930 years.

"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)