He shall pour the water out of his buckets, and his seed shall be in many waters, and his king shall be higher than Agag, and his kingdom shall be exalted. He shall pour the water out of his buckets, etc. - Here is a very plain allusion to their method of raising water in different parts of the East. By the well a tall pole is erected, which serves as a fulcrum to a very long lever, to the smaller end of which a bucket is appended. On the opposite end, which is much larger, are many notches cut in the wood, which serve as steps for a man, whose business it is to climb up to the fulcrum, in order to lower the bucket into the well, which, when filled, he raises by walking back on the opposite arm, till his weight brings the bucket above the well's mouth: a person standing by the well empties the bucket into a trench, which communicates with the ground intended to be watered.
His seed shall be in many waters - Another simple allusion to the sowing of rice. The ground must not only be well watered, but flooded, in order to serve for the proper growth of this grain. The rice that was sown in many waters must be the most fruitful. By an elegant and chaste metaphor all this is applied to the procreation of a numerous posterity.
His king shall be higher than Agag - This name is supposed to have been as common to all the Amalekitish kings as Pharaoh was to those of Egypt. But several critics, with the Septuagint, suppose that a small change has taken place here in the original word, and that instead of מאגג meagag, than Agag, we should read מגוג miggog, than Gog. As Gog in Scripture seems to mean the enemies of God's people, then the promise here may imply that the true worshippers of the Most High shall ultimately have dominion over all their enemies.