Baha’u’llah’s covenant God “didst establish…with every one who hath been created in the kingdoms of earth and heaven and in the realms of revelation and of creation."

I testify, O my God, that this is the Day whereon Thy testimony hath been fulfilled, and Thy clear tokens have been manifested, and Thine utterances have been revealed, and Thy signs have been demonstrated, and the radiance of Thy countenance hath been diffused, and Thy proof hath been perfected, and Thine ascendancy hath been established, and Thy mercy hath overflowed, and the Day-Star of Thy grace hath shone forth with such brilliance that Thou didst manifest Him Who is the Revealer of Thyself and the Treasury of Thy wisdom and the Dawning-Place of Thy majesty and power. Thou didst establish His covenant with every one who hath been created in the kingdoms of earth and heaven and in the realms of revelation and of creation. 

- Baha’u’llah  (‘Prayers and Meditations by Baha’u’llah’)