Verses 1–3
EXODUS - CHAPTER THIRTY-FIVE
Verses 1-3:
Before beginning the work on the tabernacle, Moses repeated the Divine command regarding the Sabbath, Ex 20:8-11; 23:12; 34:21. He added in this text a prohibition against kindling a fire on the Sabbath.
A reason for the repetition of this command may be that the people needed a warning, lest in their zeal to complete the tabernacle, and regarding it as a sacred task, they might be tempted to violate the Sabbath law.
The kindling of a fire required considerable labor. One method was by vigorously rubbing two sticks together, until the friction generated heat to ignite kindling. Another method was by rapidly twirling a stick between the palms of the hands, which one end of the stick in a depression on a board, until friction ignited a fire. Either method was slow and laborious.