The battle against Og took place in Edrei, the outskirts of which Israel reached toward nightfall. On the following morning, however, barely at gray dawn, Moses arose and prepared to attack the city, but looking toward the city wall, he cried in amazement, "Behold, in the night they have built up a new wall about the city!" Moses did not see clearly in the misty morning, for there was no wall, but only the giant Og who sat upon the wall with his feet touching the ground below.
Considering Og's enormous stature, Moses' mistake was pardonable, for as a grave-digger of later times related, Og's thigh-bone alone measured more than three parasangs. "Once," so records Abba Saul, "I hunted a stag which fled into the thigh bone of a dead man. I pursued it and ran along three parasangs of the thigh-bone, yet had not reached its end." This thigh-bone, as was later established, was Og's.