John Calvin on Numbers 24:22-23

22. Until Asshur shall carry thee away captive. It is a harsh and unnatural construction to apply this to the Kenites; and the majority, indeed, consent that it should be referred to the Israelites; yet they differ as to the meaning of it, for some take it affirmatively, that the Kenites should be wasted, until the Assyrians should conquer the Israelites and carry them away captive; some, however, take it interrogatlvely, It will be seen that the A. V. renders the clause interrogatively in the margin, though with a slight difference from the sense of C. as if it were an abrupt exclamation, How long shall Asshur hold thee captive? Thus they conceive the prolonged exile of the people is indicated. Undoubtedly it was the purpose of the Spirit to shew, by way of correction, that their prosperity, which had been previously mentioned, should be mixed with heavy afflictions: for slavery is a bitter thing, and exile even worse. Hence we gather that, though the Church is blessed by God, it is still in such a way as that it shall not cease to be exposed to various calamities. The interrogation, therefore, will be most appropriate.