Revelation 10:1 describes a mighty angel with a rainbow upon his head, reminiscent of the appearance of the likeness of the glory of the LORD in Ezekiel 1:28, where a rainbow is also mentioned as part of the divine vision.
Revelation 10:2 mentions the angel with a little book open in his hand, similar to Daniel 12:7 where a man clothed in linen holds a book and swears by Him who lives forever, indicating the sealing and revealing of divine mysteries.
Revelation 10:6 speaks of the angel swearing by Him who created heaven and earth, echoing Exodus 20:11, which emphasizes God's creation of the heavens and the earth in six days, underscoring God's sovereignty over creation.
Revelation 10:7 mentions the mystery of God being finished, as declared to His servants the prophets, aligning with Amos 3:7, which states that the Lord GOD does nothing without revealing His secret to His servants the prophets.
Revelation 10:9 describes John eating the little book, which is sweet in his mouth but bitter in his stomach, paralleling Ezekiel 3:1-3 where Ezekiel eats a scroll that is sweet as honey, symbolizing the reception and proclamation of God's word.