on his sword # 09_1SA_25_13 # And David said unto his men, Gird ye on every man his sword. And they girded on every man his sword; and David also girded on his sword: and there went up after David about four hundred men; and two hundred abode by the stuff. 
upon his sword # 09_1SA_31_05 # And when his armourbearer saw that Saul was dead, he fell likewise upon his sword, and died with him.