The beginning of creation
Whether arche names the Son as creation's origin or its first product.
Revelation 3:14
14“To the angel of the assembly in Laodicea write: “The Amen, the Faithful and True Witness, the Beginning of God’s creation, says these things:
What each tradition says
Rabbinic / Midrashic
No sourced position found. Checked the Jewish Encyclopedia articles 'Son of God', 'God (Wisdom of God)', 'Philo Judaeus', 'Eschatology' and 'Resurrection' - none treats Rev. 3:14 or the Arian use of 'beginning of the creation of God'; Sefaria holds no rabbinic commentary on Revelation. No rabbinic position on this dispute found.
Patristic
Bede says Christ, who is truth in the essence of His divinity, declared that through the mystery of His Incarnation He was made “the beginning of the creation of God.” This was so He might train the Church for the endurance of sufferings.
Bede (the Venerable), The Explanation of the Apocalypse (trans. E. Marshall, 1878) — On Apoc. iii. 14 (Laodicea)
Catholic
E. Sylvester Berry identifies Jesus Christ as the Amen, the unchangeable and eternal. He states that by Him all things were created.
E. Sylvester Berry, The Apocalypse of St. John (1921) — On Apoc. iii. 14 (Laodicea)
Orthodox
No sourced position found. Checked CCEL NPNF II/9 (John of Damascus, Hilary), ANF 7 (Victorinus, Commentary on the Apocalypse - its Laodicea section treats vv. 15-18 only, skipping v. 14), and pravoslavieto.com: no public-domain English comment on Rev. 3:14; Andrew of Caesarea's Apocalypse commentary exists only in a modern copyrighted translation.
Reformed / Protestant
Gill says the phrase is Jewish and is a title the Jews give to Metatron, by whom they sometimes mean the Messiah. In their paraphrase of Genesis 24:2, God’s servant is called the beginning of the creation of God and ruler over all. Christ is the arche, the Prince or Governor of all creatures.
John Gill, John Gill's Exposition of the Whole Bible — On Revelation 3:14
Evangelical
Jamieson, Fausset, and Brown say the “beginning of the creation of God” does not mean He was the first one God created. Rather, as Colossians 1:15 indicates, He is the Beginner of all creation, its originating instrument. All creation would not be represented adoring Him if He were but one of themselves.
Robert Jamieson, A. R. Fausset, David Brown, Commentary Critical and Explanatory on the Whole Bible — On Revelation 3:14