'Weariness' in the Bible

But Ja'el the wife of Heber took a tent peg, and took a hammer in her hand, and went softly to him and drove the peg into his temple, till it went down into the ground, as he was lying fast asleep from weariness. So he died.

And besides, my son, be warned by them: of making many books there is no end, and much study is a weariness of the flesh.

And ye say, Behold, what a weariness! And ye have puffed at it, saith Jehovah of hosts, and ye bring that which was torn, and the lame, and the sick; thus ye bring the oblation: should I accept this of your hand? saith Jehovah.