Keluaran 17:5

17:5 The Lord said to Moses, “Go over before the people; ¹  take with you some of the elders of Israel and take in your hand your staff with which you struck the Nile and go.

Keluaran 39:21

39:21 They tied the breastpiece by its rings to the rings of the ephod by blue cord, so that it was above the waistband of the ephod, so that the breastpiece would not be loose from the ephod, just as the Lord had commanded Moses.

[17:5]  ¹ tn “Pass over before” indicates that Moses is the leader who goes first, and the people follow him. In other words, לִפְנֵי (lifney) indicates time and not place here (B. Jacob, Exodus, 477-78).