And so it was... — Better, And sometimes, &c., i.e., there were times or occasions in which, &c. So in Numbers 9:21.
Related Commentaries of Numbers 9:20
Numbers 9:20
20 And so it was, when the cloud was a few days upon the tabernacle; according to the commandment of the LORD they abode in their tents, and according to the commandment of the LORD they journeyed.