'Seek' in the Bible

And I applied my heart to seek and to search out by wisdom concerning all that is done under heaven: it is a sore travail that God hath given to the sons of men to be exercised therewith.

a time to seek, and a time to lose; a time to keep, and a time to cast away;

I turned about, and my heart was set to know and to search out, and to seek wisdom and the reason of things , and to know that wickedness is folly, and that foolishness is madness.

then I beheld all the work of God, that man cannot find out the work that is done under the sun: because however much a man labor to seek it out, yet he shall not find it; yea moreover, though a wise man think to know it, yet shall he not be able to find it.