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: Thus saith the LORD of hosts, the God of Israel, saying; Ye and your wives have both spoken with your mouths, and fulfilled with your hand, saying, We will surely perform our vows that we have vowed, to burn incense to the queen of heaven, and to pour out drink offerings unto her: ye will surely accomplish your vows, and surely perform your vows.
NASB: thus says the LORD of hosts, the God of Israel, as follows: 'As for you and your wives, you have spoken with your mouths and fulfilled it with your hands, saying, "We will certainly perform our vows that we have vowed, to burn sacrifices to the queen of heaven and pour out drink offerings to her." Go ahead and confirm your vows, and certainly perform your vows!'