For the moment all discipline seems painful rather than pleasant, but later it yields the peaceful fruit of righteousness to those who have been trained by it. Hebrews 12:11

Know this, my beloved brothers: let every person be quick to hear, slow to speak, slow to anger James 1:19

For I know the plans I have for you, declares the Lord, plans for welfare and not for evil, to give you a future and a hope. Jeremiah 29:11

The mouth of the righteous is a fountain of life, but violence overwhelms the mouth of the wicked. Proverbs 10:11 from verseoftheday.com 

For the LORD is good and his love endures forever; his faithfulness continues through all generations. Psalm 100:5

So I recommend having fun, because there is nothing better for people in this world than to eat, drink, and enjoy life. That way they will experience some happiness along with all the hard work God gives them under the sun. Ecclesiastes 8:15  

Many are the plans in a person's heart, but it is the LORD's purpose that prevails. Proverbs 19:21  

Consider it pure joy, my brothers and sisters, whenever you face trials of many kinds, because you know that the testing of your faith produces perseverance. Let perseverance finish its work so that you may be mature and complete, not lacking anything. James 1:2-4

For everything there is a season, and a time for every matter under heaven: a time to be born, and a time to die; a time to plant, and a time to pluck up what is planted; a time to kill, and a time to heal; a time to break down, and a time to … Continue reading Ecclesiastes 3:1-8

In his heart a man plans his course, but the LORD determines his steps. Proverbs 16:9