1 Samuel 20:19

And [when] thou hast stayed three days, [then] thou shalt go down quickly, and come to the place where thou didst hide thyself when the business was [in hand], and shalt remain by the stone Ezel.

Ver. 19. When the business was in hand.] When I advertised thee of my father's intent to kill thee, 1Sa 19:2 and when I made intercession for thee to my father, being hard wrought about it.

By the stone Ezel.] That is, By the stone of walking, saith Lyra; because Jonathan and David used there to walk and talk of private businesses: as a certain hill near Cambridge was commonly called Heretics' Hill, because thither Bilney and Latimer used to resort for holy conference. Lapidem Mercurialem intelligit, saith Vatablus here, i.e., He meaneth a stone that set travellers their right way.