Repeated so many times in a single verse indicates a certain urgency in singing praises to God. It’s wise to take notice when the Bible repeats something.

“And the four beasts had each of them six wings about him; and they were full of eyes within: and they rest not day and night, saying, Holy, holy, holy, Lord God Almighty, which was, and is, and is to come.” (Revelation‬ ‭4:8)‬

God’s Word changes lives.