'Seal' in the Bible
When He (the Lamb) broke the second seal, I heard the second living creature call out, “Come.”
When He (the Lamb) broke open the third seal, I heard the third living creature call out, “Come.” I looked, and behold, a black horse [of famine]; and the rider had in his hand a pair of scales (a balance).
When He (the Lamb) broke open the fourth seal, I heard the voice of the fourth living creature call out, “Come.”
When He (the Lamb) broke open the fifth seal, I saw underneath the altar the souls of those who had been slaughtered because of the word of God, and because of the testimony which they had maintained [out of loyalty to Christ].
I looked when He (the Lamb) broke open the sixth seal, and there was a great earthquake; and the sun became black as sackcloth [made] of hair, and the whole moon became like blood;
Then I saw another angel coming up from the rising of the sun, holding the seal of the living God; and with a loud voice he called out to the four angels to whom it was granted [to have authority and power] to harm the earth and the sea,
When He (the Lamb) broke open the seventh seal, there was silence in heaven for about half an hour [in awe of God’s impending judgment].
They were told not to hurt the grass of the earth, nor any green thing, nor any tree, but [to hurt] only the people who do not have the seal (mark of ownership, protection) of God on their foreheads.
And when the seven peals of thunder had spoken, I was about to write; but I heard a voice from heaven saying, “Seal up the things which the seven peals of thunder have spoken and do not write them down.”
And he said to me, “Do not seal up the words of the prophecy of this book, for the time [of their fulfillment] is near.