sentences:  He sits on a chair that is lifted up against the root by Gjálp and Greipa as they are trying to kill him.The same myth is told in "Þórsdrápa" by Eilífr Goðrúnarson (late 10th c. AD), which is cited by Snorri Sturluson in "Skáldskaparmál", although the giantesses are not named in the poem.