Revelation 10:4-6

Young's Literal Translation

⁴ and when the seven thunders spake their voices, I was about to write, and I heard a voice out of the heaven saying to me, `Seal the things that the seven thunders spake,' and, `Thou mayest not write these things.'

⁵ And the messenger whom I saw standing upon the sea, and upon the land, did lift up his hand to the heaven,

⁶ and did swear in Him who doth live to the ages of the ages, who did create the heaven and the things in it, and the land and the things in it, and the sea and the things in it -- that time shall not be yet,