'Stamp' in the Bible

So they went, and made safe the place where his body was, putting a stamp on the stone, and the watchmen were with them.

And it is he who has put his stamp on us, even the Spirit, as the sign in our hearts of the coming glory.

And when the second stamp was undone, the voice of the second beast came to my ears, saying, Come and see.

And when the third stamp was undone, the voice of the third beast came to my ears, saying, Come and see. And I saw a black horse; and he who was seated on it had scales in his hand.

And when the fourth stamp was undone, the voice of the fourth beast came to my ears, saying, Come and see.

And when the fifth stamp was undone, I saw under the altar the souls of those who had been put to death for the word of God, and for the witness which they kept.

And I saw when the sixth stamp was undone, and there was a great earth-shock; and the sun became black as haircloth, and all the moon became as blood;

And when the seventh stamp was undone there was quiet in heaven for about half an hour.