Matthew Poole and continuators on Deuteronomy 12:8

8 Ye shall not do after all the things that we do here this day, every man whatsoever is right in his own eyes .

Where the inconveniency of the place and the uncertainty of our abode in and removal from several places would not permit exact order in sacrifices and feasts and ceremonies, which therefore God was pleased then to dispense, but, saith he, he will not do so there.

Not that universal liberty was given to all persons to worship whom and how they listed, but that in many things their unsettled condition gave every one opportunity to do so, if he thought good.