'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 may withstand him}. A threefold cord {is not easily broken}!

That wealth was lost in a bad venture. Although he has borne a child, {he has nothing to leave to him}.

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.

Although the sinner does evil a hundred times and prolongs his life, yet I also know that it will be good for those who fear God--because they fear {his presence}.

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.