seal

And what he hath seen and heard, that he testifieth; and no man receiveth his testimony. He that hath received his testimony hath set to his seal that God is true.

John 3:32-33, KJV

And I John saw these things, and heard them. And when I had heard and seen, I fell down to worship before the feet of the angel which shewed me these things. Then saith he unto me, See thou do it not: for I am thy fellowservant, and of thy brethren the prophets, and of them which keep the sayings of this book: worship God. And he saith unto me, Seal not the sayings of the prophecy of this book: for the time is at hand. He that is unjust, let him be unjust still: and he which is filthy, let him be filthy still: and he that is righteous, let him be righteous still: and he that is holy, let him be holy still.And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be. I am Alpha and Omega, the beginning and the end, the first and the last.

Revelation 22:10-13, KJV

thou was sealed in thy nativity The slave of nature and the son of hell

Shakespeare, Richard III, Act 1, Scene 3

Nature now Shall make and act the story, the belief Both seal'd with eye and ear.

Shakespeare, The Two Noble Kinsmen, Act 5, Scene 3

when the oracle, Thus by Apollo's great divine seal'd up, Shall the contents discover, something rare Even then will rush to knowledge

Shakespeare, The Winter's Tale, Act 3, Scene 1