30:3 day of the LORD. “The day of the LORD” is the coming time when God will judge and punish the “heathen” (that is, the Gentile nations) for their rebellion against Him and their persecution of His people. Evidently the imminent invasion of the Babylonians (note Ezekiel 30:5), conquering Egypt, as well as Ethiopia, Libya, Lydia and Chub (an unknown nation mentioned only this once in the Bible), is seen as a precursive fulfillment of a greater judgment coming in the battles of the last days.