'Applied' in the Bible

I applied my heart to seek and to search out by wisdom concerning all that is done under the sky. It is a heavy burden that God has given to the sons of men to be afflicted with.

I applied my heart to know wisdom, and to know madness and folly. I perceived that this also was a chasing after wind.

All this have I seen, and applied my mind to every work that is done under the sun. There is a time in which one man has power over another to his hurt.

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