This was so continually: throughout the day a cloud covered it, and throughout the night, the appearance of fire
Other versions
King James Version
So it was alway: the cloud covered it by day, and the appearance of fire by night.English Standard Version
So it was always: the cloud covered it by day and the appearance of fire by night.New International Version
That is how it continued to be; the cloud covered it, and at night it looked like fire.