Isaiah 6:2 Seraphs are standing above it: six wings hath each one; with two 'each' covereth its face, and with two 'each' covereth its feet, and with two 'each' flieth. (YLT NIV)
Isaiah 6:6 And flee unto me doth one of the seraphs, and in his hand a burning coal, (with tongs he hath taken 'it' from off the altar,) (YLT NIV)