"But I will spare a few of them from the sword, famine and plague, so that in the nations where they go they may acknowledge all their detestable practices. Then they will know that I am the LORD." (NIV)
But I will leave a few survivors who will escape the sword, the famine, and the pestilence, that they may declare and confess all their [idolatrous] abominations among the nations to which they go, and [thus God's punishment of them will be justified before everyone and] they shall know (understand and realize) that I am the Lord. (AMP)
But I will leave a few men of them from the sword, from the famine, and from the pestilence; that they may declare all their abominations among the heathen whither they come; and they shall know that I am the LORD. (KJV)