The Scriptures
I believe the 66 book canon of Scripture is the only authority outside of God himself in terms of faith and practice.
I believe the Holy Spirit, who teaches us things, uses the text to enlighten our intellect. Without God, there is no way to fully understand and believe the written Word of God.
I reject the book of Enoch, all of the apocrypha, psuedopegripha, and anything outside of the 66 book canon.
I believe there are multiple English translations that are sufficient.