King James Version (KJV) - Genesis 15:17 >

And it came to pass, that, when the sun went down, and it was dark, behold a smoking furnace, and a burning lamp that passed between those pieces.

Jewish Publication Society of America Version (JPS1917) - Genesis 15:17 >

And it came to pass, that, when the sun went down, and there was thick darkness, behold a smoking furnace, and a flaming torch that passed between these pieces.