33 So they set out from the mountain of the LORD and traveled for three days. The ark of the covenant of the LORD went before them during those three days to find them a place to rest.

Read Numbers 10:33 Using Other Translations

And they departed from the mount of the LORD three days' journey: and the ark of the covenant of the LORD went before them in the three days' journey, to search out a resting place for them.
So they set out from the mount of the LORD three days' journey. And the ark of the covenant of the LORD went before them three days' journey, to seek out a resting place for them.
They marched for three days after leaving the mountain of the LORD, with the Ark of the LORD ’s Covenant moving ahead of them to show them where to stop and rest.