The first time we tried to bring the chest to Jerusalem, we didn't ask the LORD what he wanted us to do. He was angry with us, because you Levites weren't there to carry the chest.”
When the camp is ready to be moved, the Kohathites will be responsible for carrying the sacred objects and the furnishings of the sacred tent. But Aaron and his sons must have already covered those things so the Kohathites won't touch them and die.
Some of the men of Beth-Shemesh looked inside the sacred chest, and the LORD God killed seventy of them. This made the people of Beth-Shemesh very sad,