sn God chose to guide the people with a pillar of cloud in the day and one of fire at night, or, as a pillar of cloud and fire, since they represented his presence. God had already appeared to Moses in the fire of the bush, and so here again is revelation with fire. Whatever the exact nature of these things, they formed direct, visible revelations from God, who was guiding the people in a clear and unambiguous way. Both clouds and fire would again and again represent the presence of God in his power and majesty, guiding and protecting his people, by judging their enemies.
tn The infinitive construct here indicates the result of these manifestations—“so that they went” or “could go.”
tn These are adverbial accusatives of time.