'Seals' in the Bible

Of the seals, and of the nose-rings,

And I saw upon the right hand of Him who is sitting upon the throne a scroll, written within and on the back, sealed with seven seals;

and I saw a strong messenger crying with a great voice, 'Who is worthy to open the scroll and to loose the seals of it?'

and one of the elders saith to me, 'Weep not; lo, overcome did the Lion, who is of the tribe of Judah, the root of David, to open the scroll, and to loose the seven seals of it;

and they sing a new song, saying, 'Worthy art thou to take the scroll, and to open the seals of it, because thou wast slain, and didst redeem us to God in thy blood, out of every tribe, and tongue, and people, and nation,

And I saw when the Lamb opened one of the seals, and I heard one of the four living creatures saying, as it were a voice of thunder, 'Come and behold!'