'Applied' in the Bible

I applied my mind to seek and explore through wisdom all that is done under heaven. God has given people this miserable task to keep them occupied.

I applied my mind to know wisdom and knowledge, madness and folly; I learned that this too is a pursuit of the wind.

I applied mine heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness:

All this have I seen, and applied my heart unto every work that is done under the sun: there is a time wherein one man ruleth over another to his own hurt.

When I applied mine heart to know wisdom, and to see the business that is done upon the earth: (for also there is that neither day nor night seeth sleep with his eyes:)