'Although' in the Bible

For although a person may toil with great wisdom and skill, he must leave his reward to someone who has not toiled for it. This also [is] vanity and a great calamity.

Although an assailant may overpower one person, two can withstand him. Moreover, a three-stranded cord is not quickly broken.

For out of the prison-house he came forth to reign, although he was born poor in his kingdom.

Then that wealth was lost through bad luck; although he fathered a son, he has nothing left to give him.

Do not be excessively or willfully wicked and do not be a fool. Why should you die before your time?

What my heart sought, I did not find. Although I found one righteous man among one thousand, I did not find one [upright] woman among all these.

For there is a proper time and [appropriate] procedure for every delight,Though mankind’s misery and trouble lies heavily upon him [who rebels against the king].

Although a sinner commits crime a hundred times and prolongs his life, yet I also know that it will go well with God-fearing people, for they are reverent before Him.

Then I saw all the work of God--man [is] not able to discover the work that is done under the sun. Although man may toil in seeking, he cannot find it. Even if a wise man claims [that he] knows it, he cannot find it.