'Sign' in the Bible

and hast bound them for a sign upon thy hand, and they have been for frontlets between thine eyes,

'And ye have placed these my words on your heart, and on your soul, and have bound them for a sign on your hand, and they have been for frontlets between your eyes;

'When there ariseth in your midst a prophet, or a dreamer of a dream, and he hath given unto thee a sign or wonder,

and the sign and the wonder hath come which he hath spoken of unto thee, saying, Let us go after other gods (which thou hast not known), and serve them,

and they have been on thee for a sign and for a wonder, also on thy seed -- to the age.