Holier Than Thou - Biblical Contradictions

Are all who call on the name of the Lord saved?

Romans 10:12-13, "For there is no difference between Jew and Gentile -- the same Lord is Lord of all and richly blesses all who call on him, for, 'Everyone who calls on the name of the Lord will be saved [Joel 2:32].' "

Matthew 7:21, "Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven."

According to Romans (which is Paul quoting Joel 2:32), "Everyone who calls on the name of the Lord will be saved." However, according to Matthew, Jesus said that not everyone who calls on the name of the Lord will be saved, "but only he who does the will of my Father who is in heaven."

"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)