Exodus 19:12

19:12 You must set boundaries ¹  for the people all around, saying, ‘Take heed ²  to yourselves not to go up on the mountain nor touch its edge. Whoever touches the mountain will surely be put to death!

Exodus 26:5

26:5 You are to make fifty loops on the one curtain, and you are to make fifty loops on the end curtain which is on the second set, so that the loops are opposite one to another. ³ 

Exodus 36:12

36:12 He made fifty loops on the first curtain, and he made fifty loops on the end curtain that was in the second set, with the loops opposite one another.

[19:12]  ¹ tn The verb is a Hiphil perfect (“make borders”) with vav (ו) consecutive, following the sequence of instructions.

[19:12]  ² tn The Niphal imperative (“guard yourselves, take heed to yourselves”) is followed by two infinitives construct that provide the description of what is to be avoided – going up or touching the mountain.

[26:5]  ³ tn Heb “a woman to her sister.”