KJV: In that day the LORD with his sore and great and strong sword shall punish leviathan the piercing serpent, even leviathan that crooked serpent; and he shall slay the dragon that is in the sea.
NASB: In that day the LORD will punish Leviathan the fleeing serpent, With His fierce and great and mighty sword, Even Leviathan the twisted serpent; And He will kill the dragon who lives in the sea.
KJV: And it shall come to pass in that day, that the LORD shall beat off from the channel of the river unto the stream of Egypt, and ye shall be gathered one by one, O ye children of Israel.
NASB: In that day the LORD will start His threshing from the flowing stream of the Euphrates to the brook of Egypt, and you will be gathered up one by one, O sons of Israel.
KJV: And it shall come to pass in that day, that the great trumpet shall be blown, and they shall come which were ready to perish in the land of Assyria, and the outcasts in the land of Egypt, and shall worship the LORD in the holy mount at Jerusalem.
NASB: It will come about also in that day that a great trumpet will be blown, and those who were perishing in the land of Assyria and who were scattered in the land of Egypt will come and worship the LORD in the holy mountain at Jerusalem.
KJV: From the time that it goeth forth it shall take you: for morning by morning shall it pass over, by day and by night: and it shall be a vexation only to understand the report.
NASB: "As often as it passes through, it will seize you; For morning after morning it will pass through, anytime during the day or night, And it will be sheer terror to understand what it means."