The very last book in the Bible, being the twenty-seventh in the New Testament, and the sixty-sixth in the Bible as a whole, is The Revelation. It was written by the apostle John, towards the end of his life in approximately 95 AD. John had been exiled to the island of Patmos by the Roman authorities, probably for spreading the Christian prophecies, which was an offence at the time.
Whilst he was banished on Patmos, John received from God a series of visions which revealed to him the future that is to come. John's visions show Jesus Christ as the divine shepherd of the Church, the righteous judge of mankind and the victorious king who will reign from His eternal kingdom on Earth.
"And before the throne there was a sea of glass like unto crystal: and in the midst of the throne, and round about the throne, were four beasts full of eyes before and behind. And the first beast was like a lion, and the second beast like a calf, and the third beast had a face as a man, and the fourth beast was like a flying eagle. 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."
This is similar, though not identical, to Ezekiel's vision, in which he saw creatures which had four faces; those of a lion, an ox, a man and an eagle