Deuteronomy 33:19

They; either,

1. Zebulun and Issachar. Or rather,

2. Zebulun only, as the following matter shows; and it was Zebulun that Moses takes more special notice of, Deuteronomy 33:18, bringing in Issachar only by the by, in conjunction with him, or in opposition to him. And so having despatched Issachar in two words, he returns to Zebulun, a more active tribe. The people, i.e. the Gentiles; either those of Galilee, which was called Galilee of the Gentiles, who were their neighbours; or people of other nations, with whom they had commerce, which they endeavoured to improve in persuading them to the true God, and his worship and service. Unto the mountain, i.e. to the temple, which Moses knew was to be seated upon a mountain. Sacrifices of righteousness, i.e. such as God requires and righteousness obligeth them to offer. Their trafficking abroad with heathen nations shall not make them forget or neglect their duty at home, nor shall their distance from the place of sacrifice hinder them from coming to it to discharge that duty. They shall suck of the abundance of the seas; they shall grow rich by the traffic of the sea; and their riches shall not make them the worse, as they do others, but they shall consecrate themselves and their riches to the service of God. Treasures hid in the sand; such precious things as either,

1. Are contained in the sand of the sea and rivers, in which sometimes there is mixed a considerable quantity of gold and silver. Or,

2. Such as grow in the sea, or are fetched from the sandy bottom of it, as pearls, coral, ambergris, &c. Or,

3. Such as being east into the sea by shipwreck are cast upon the shore by the workings of the sea, and thence taken either by merchants, or by the people that live upon the sea-coast.