This Bible passage can be found in Revelation 1:14 to 15. It reads: "His head and his hairs were white like wool, as white as snow ... And his feet like unto fine brass, as if they burned in a furnace; and his voice as the sound of many waters."
The passage is from the King James Version of the New Testament. Some translations vary in wording, with some saying "brass" and others "bronze." The verses from Revelation derive from the vision of John of Patmos. They generally are meant to describe Jesus as John sees him in his heavenly form, as opposed to being a description of Jesus in his earthly form.