there they shall offer sacrifices of righteousness; or true sacrifices, as the Targums of Jonathan and Jerusalem, in opposition to illegitimate ones, which were not according to the law, that had blemishes and defects in them, and to such as were gotten by robbery, or in an unlawful way; and may signify all righteous actions and good works done in faith, and from right principles, though not to be depended upon for a justifying righteousness before God; and all spiritual sacrifices, especially the sacrifices of praise for all blessings, and particularly for the righteousness of Christ; and these are to be offered in the church of God, and upon the altar, which sanctifies every gift, and from whence they come up with acceptance to God:
for they shall suck of the abundance of the sea; get a great deal of riches by trading at sea, and therefore under great obligations to offer sacrifices to the Lord, by whom they were prospered:
and of the treasure hid in the sand; as gold and silver, pearls and corals, and the like, extracted from thence; or riches buried there through shipwrecks; or it may design the great wealth and riches they got by glass made of sand, taken out of the river Belus, which washed the coast of the tribe of Zebulun, as many historians relate (z).
(z) Strabo. Geograph. l. 16. p. 521. Plin. Nat. Hist. l. 5. c. 19. Tacit. Hist. l. 5. c. 7.