For the relative H834; used with prepositional {prefix} and often followed by some pronoun affixed; on account {of} what {soever} whichsoever: - {cause} sake.
Ecc 8:17Then I beheld all the work of God, that a man cannot find out the work that is done under the sun: because thoughH7945 a man labour to seek it out, yet he shall not find it; yea further; though a wise man think to know it, yet shall he not be able to find it.
Jon 1:7And they said every one to his fellow, Come, and let us cast lots, that we may know for whose causeH7945 this evil is upon us. So they cast lots, and the lot fell upon Jonah.
Jon 1:12And he said unto them, Take me up, and cast me forth into the sea; so shall the sea be calm unto you: for I know that for my sakeH7945 this great tempest is upon you.