Labour

From the beginning, man was created to work.
The LORD God took the man and put him in the garden of Eden to work it and keep it. (Genesis 2:15 KJV)

Sin made the work of man difficult.
By the sweat of your brow you will eat your food until you return to the ground, since from it you were taken; for dust you are and to dust you will return. (Genesis 3:19 NIV)

So we must make sure that our work will last.
Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed. (John 6:27 KJV)
And whatsoever ye do, do it heartily, as to the Lord, and not unto men; Knowing that of the Lord ye shall receive the reward of the inheritance: for ye serve the Lord Christ. (Colossians 3:23-24 KJV)
Whatever your hand finds to do, do it with all your might; for there is no activity or planning or knowledge or wisdom in Sheol where you are going. (Ecclesiastes 9:10 NASB)

We will find satisfaction in the work God called us to do and glorify God.
Even so, I have noticed one thing, at least, that is good. It is good for people to eat, drink, and enjoy their work under the sun during the short life God has given them, and to accept their lot in life. (Ecclesiastes 5:18 NLT)
A man can do nothing better than to eat and drink and find satisfaction in his work. This too, I see, is from the hand of God, for without him, who can eat or find enjoyment? (Ecclesiastes 2:24-25 NIV)
And also that every man should eat and drink, and enjoy the good of all his labour, it is the gift of God. (Ecclesiastes 3:13 KJV)

A skillful man would be sought out, even by kings.
Do you see a man skillful in his work? He will stand before kings; he will not stand before obscure men. (Proverbs 22:29 ESV)

Yet man must not put his all into his work.
Six days thou shalt labour, and do all thy work: (Deuteronomy 5:13 KJV)

And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by every word that proceedeth out of the mouth of the LORD doth man live. (Deuteronomy 8:3 KJV)

What happens if we do not work?
For even when we were with you, this we commanded you, that if any would not work, neither should he eat. (2 Thessalonians 3:10 KJV)
But if anyone does not provide for his own, that is his own household, he has denied the faith and is worse than an unbeliever. (1 Timothy 5:8 HCSB)
Wealth obtained by fraud will dwindle, but whoever earns it through labor will multiply it. (Proverbs 13:11 HCSB)
All hard work brings a profit, but mere talk leads only to poverty. (Proverbs 14:23 NIV)
Let him that stole steal no more: but rather let him labour, working with his hands the thing which is good, that he may have to give to him that needeth. (Ephesians 4:28 KJV)
He who works his land will have abundant food, but the one who chases fantasies will have his fill of poverty. (Proverbs 28:19 NIV)