Holier Than Thou - Biblical Contradictions

Should good deeds be done in the open or in secret?

Matthew 5:16, "In the same way, let your light shine before men, that they may see your good deeds and praise your Father in heaven."

Matthew 6:3-4, "But when you give to the needy, do not let your left hand know what your right hand is doing, so that your giving may be in secret. Then your Father, who sees what is done in secret, will reward you."

According to Matthew chapter 5, Jesus said to let good deeds be seen that others may praise the Father in heaven, however, in the next chapter he is reported to say that one such good deed, that of giving to the needy, should be done in secret.

"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)