He turned again, as if he had forgot and neglected some important business.
From the quarries; either, first, Whence they hewed stones. Or, secondly, The twelve stones which Joshua set up there; by the sight whereof he was animated to his work. Or, thirdly, The idols, as the word also signifies, which that heathen king might place there, either in spite and contempt to the Israelites, who had that place in great veneration; or that he might ascribe his conquest of the land to his idols, as the Israelites did to the true God, by setting up this monument in the entrance or beginning of it.
Keep silence till my servants be gone; whom he would not have acquainted with a business which he supposed to be of great and close importance.