"if the thief is found, he pays double": A thief (one who steals by stealth) pays kefel, but not a robber (one who steals openly). Why did Scripture see fit to be more severe with a thief than with a robber? R. Yochanan says: A robber likens the honor of a servant to the honor of his Master, (not fearing both). A thief accords more honor to a servant than to His Master, (fearing the first, but not the second). A thief makes the Eye on high, unseeing, as it were, and the Ear, unhearing. As it is written (Isaiah 29:15) "Woe unto those who would probe deeper than the L–rd, to conceal (their) counsel, doing their work in the dark; saying: 'Who sees us? Who notices us?'" And (Psalms 94:7) "They say 'The L–rd does not see; the G–d of Jacob does not understand.'" And (Ezekiel 9:9) "For they said 'The L–rd has forsaken the land; the eye of the L–rd does not see.'"