NET
21 Now the Lord was going before them by day in a pillar of cloud to lead them in the way, and by night in a pillar of fire to give them light, so that they could travel day or night.
Darby
21 And Jehovah went before their face by day in a pillar of a cloud, to lead them [in] the way; and by night in a pillar of fire, to give them light; so that they could go day and night.
KJV
21 And the LORD went before them by day in a pillar of a cloud, to lead them the way; and by night in a pillar of fire, to give them light; to go by day and night: