Joshua 3:2-4

Young's Literal Translation

² And it cometh to pass, at the end of three days, that the authorities pass over into the midst of the camp,

³ and command the people, saying, `When ye see the ark of the covenant of Jehovah your God, and the priests, the Levites, bearing it, then ye journey from your place, and have gone after it;

⁴ only, a distance is between you and it, about two thousand cubits by measure; ye do not come near unto it, so that ye know the way in which ye go, for ye have not passed over in the way heretofore.'