John Gills Exposition of the Bible Commentary - Exodus 16:28
And the Lord said unto Moses ,.... Who had seen and taken notice of what those men had done, who went out into the field to seek for manna on the seventh day, and was displeased with it, and therefore spoke to Moses out of the cloud: how long refuse ye to keep my commandments and my laws ? this is not said merely with respect to their breach of the commandment of the sabbath, as if they had long refused to observe and keep that; whereas that was but one command, and but just given; but... read more
Matthew Henry's Complete Commentary - Exodus 16:22-31
We have here, 1. A plain intimation of the observing of a seventh day sabbath, not only before the giving of the law upon Mount Sinai, but before the bringing of Israel out of Egypt, and therefore, from the beginning, Gen. 2:3. If the sabbath had now been first instituted, how could Moses have understood what God said to him (Exod. 16:5), concerning a double portion to be gathered on the sixth day, without making any express mention of the sabbath? And how could the people so readily take the... read more