Isaiah 6:1-3; Revelation 4:8

Isaiah 6:1-3

1 In the year of King Uzziah's death I saw the Lord sitting on a throne, lofty and exalted, with the train of His robe filling the temple.

2 Seraphim stood above Him, each having six wings: with two he covered his face, and with two he covered his feet, and with two he flew.

3 And one called out to another and said, "Holy, Holy, Holy, is the LORD of hosts, The whole earth is full of His glory."

Revelation 4:8

8 And the four living creatures, each one of them having six wings, are full of eyes around and within; and day and night they do not cease to say, "HOLY, HOLY, HOLY is THE LORD GOD, THE ALMIGHTY, WHO WAS AND WHO IS AND WHO IS TO COME."