Exodus 40:37

40:37 but if the cloud was not lifted up, then they would not journey further until the day it was lifted up. ¹ 

Exodus 34:3

34:3 No one is to come up with you; do not let anyone be seen anywhere on the mountain; not even the flocks or the herds may graze in front of that mountain.”

[40:37]  ¹ tn The clause uses the Niphal infinitive construct in the temporal clause: “until the day of its being taken up.”