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. Uzzah put forth his hand - In Numbers 4:15-20, the Levites are forbidden to touch the ark on pain of death, this penalty was inflicted upon Uzzah, and he was the first that suffered for a breach of this law.
Related Commentaries of 2 Samuel 6:6
2 Samuel 6:6
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.