6 ¶ And when they came to Nachon’s threshingfloor, Uzzah put forth his hand to the ark of God and took hold of it, for the oxen shook it.
2 Samuel 6:6 Cross References - EJ2000
Numbers 4:15
15 And when Aaron and his sons have made an end of covering the sanctuary and all the vessels of the sanctuary when the camp is to set forward, after that, the sons of Kohath shall come to bear it, but they shall not touch any holy thing, lest they die. These things are the burden of the sons of Kohath in the tabernacle of the testimony.
Numbers 4:19-20
1 Chronicles 13:9
9 ¶ And when they came unto the threshingfloor of Chidon, Uzza put forth his hand to hold the ark, for the oxen stumbled.