2Sa 6:6-7
When the procession had reached the threshing-floor of Nachon, Uzzah stretched out his hand to lay hold of the ark, i.e., to keep it from falling over with the cart, because the oxen slipped. And the wrath of the Lord was kindled, and God slew Uzzah upon the spot. Goren nachon means “the threshing-floor of the stroke” (nachon from נכה, not from כּוּן); in the Chronicles we have goren chidon, i.e., the threshing-floor of destruction or disaster (כּידון = כּיד, Job 21:20). Chidon is probably only an explanation of nachon, so that the name may have been given to the threshing-floor, not from its owner, but from the incident connected with the ark which took place there. Eventually, however, this name was supplanted by the name Perez-uzzah (2Sa 6:8). The situation of the threshing-floor cannot be determined, as all that we can gather from this account is that the house of Obed-edom the Gathite was somewhere near it; but no village, hamlet, or town is mentioned.Jerome paraphrases הבּקר שׁמטוּ כּי thus: “Because the oxen kicked and turned it (the ark over.” But שׁמט does not mean to kick; its true meaning is to let go, or let lie (Exo 23:11; Deu 15:2-3), hence to slip or stumble. The stumbling of the animals might easily have turned the cart over, and this was what Uzzah tried to prevent by laying hold of the ark. God smote him there “on account of the offence” (שׁל, ἁπ. λεγ. from שׁלה, in the sense of erring, or committing a fault). The writer of the Chronicles gives it thus: “Because he had stretched out his hand to the ark,” though of course the text before us is not to be altered to this, as Thenius and Bertheau suggest.