KJV: And the LORD shall be known to Egypt, and the Egyptians shall know the LORD in that day, and shall do sacrifice and oblation; yea, they shall vow a vow unto the LORD, and perform it.
NASB: Thus the LORD will make Himself known to Egypt, and the Egyptians will know the LORD in that day. They will even worship with sacrifice and offering, and will make a vow to the LORD and perform it.
KJV: And the LORD shall smite Egypt: he shall smite and heal it: and they shall return even to the LORD, and he shall be intreated of them, and shall heal them.
NASB: The LORD will strike Egypt, striking but healing; so they will return to the LORD, and He will respond to them and will heal them.
KJV: At the same time spake the LORD by Isaiah the son of Amoz, saying, Go and loose the sackcloth from off thy loins, and put off thy shoe from thy foot. And he did so, walking naked and barefoot.
NASB: at that time the LORD spoke through Isaiah the son of Amoz, saying, "Go and loosen the sackcloth from your hips and take your shoes off your feet." And he did so, going naked and barefoot.
KJV: And the residue of the number of archers, the mighty men of the children of Kedar, shall be diminished: for the LORD God of Israel hath spoken it.
NASB: and the remainder of the number of bowmen, the mighty men of the sons of Kedar, will be few; for the LORD God of Israel has spoken."