I am God and that there is none other God but me.

My hair beareth witness for My beauty that verily I am God and that there is none other God but me. In My ancient eternity I have ever been God, the One, the Peerless, the Everlasting, the Ever-living, the Ever-Abiding, the Self-Subsistent.

- Bahá'u'lláh

https://bahai-library.com/bahaullah_alwah_shaarat