" ... Thou hast ordained Naw-Rúz as a festival unto those who have observed the Fast for love of Thee ..."

He is the Almighty.

Praised be Thou, O my God, that Thou hast ordained Naw-Rúz as a festival unto those who have observed the Fast for love of Thee and abstained from all that is abhorrent unto Thee. Grant, O my Lord, that the fire of Thy love and the heat produced by the Fast enjoined by Thee may inflame them in Thy Cause, and make them to be occupied with Thy praise and with remembrance of Thee.

Since Thou hast adorned them, O my Lord, with the ornament of the Fast prescribed by Thee, do Thou adorn them also with the ornament of Thine acceptance, through Thy grace and bountiful favour. For the doings of men are all dependent upon Thy good-pleasure, and are conditioned by Thy behest. Shouldst Thou regard him who hath broken the Fast as one who hath observed it, such a man would be reckoned among them who from eternity had been keeping the Fast. And shouldst Thou decree that he who hath observed the Fast hath broken it, that person would be numbered with such as have caused the Robe of Thy Revelation to be stained with dust, and been far removed from the crystal waters of this living Fountain.

(Bahá'u'lláh, Days of Remembrance)
www.bahai.org/r/703626679