13 When those who were carrying the ark of the LORD had taken six steps, he sacrificed a bull and a fattened calf.

Read 2 Samuel 6:13 Using Other Translations

And it was so, that when they that bare the ark of the LORD had gone six paces, he sacrificed oxen and fatlings.
And when those who bore the ark of the LORD had gone six steps, he sacrificed an ox and a fattened animal.
After the men who were carrying the Ark of the LORD had gone six steps, David sacrificed a bull and a fattened calf.