Revelation 10:5-7

Young's Literal Translation

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,

⁷ but in the days of the voice of the seventh messenger, when he may be about to sound, and the secret of God may be finished, as He did declare to His own servants, to the prophets.