145. turn your faces toward Him Whom God hath purposed, Who hath branched from this Ancient Root [#121]
Bahá’u’lláh here alludes to ‘Abdu’l-Bahá as His Successor and calls upon the believers to turn towards Him. In the Book of the Covenant, His Will and Testament, Bahá’u’lláh discloses the intention of this verse. He states: "The object of this sacred verse is none other except the Most Mighty Branch." The "Most Mighty Branch" is one of the titles conferred by Bahá’u’lláh on ‘Abdu’l-Bahá. (See also notes 66 and 184.)
146. In the Bayán it had been forbidden you to ask Us questions. [#126]
The Báb forbade His followers to ask questions of Him Whom God will make manifest (Bahá’u’lláh), unless their questions were submitted in writing and pertained to subjects worthy of His lofty station. See Selections from the Writings of the Báb.
Bahá’u’lláh removes this prohibition of the Báb. He invites the believers to ask such questions as they "need to ask", and He cautions them to refrain from posing "idle questions" of the kind which preoccupied "the men of former times".
147. The number of months in a year, appointed in the Book of God, is nineteen. [#127]
The Bahá’í year, in accordance with the Badí calendar, consists of nineteen months of nineteen days each, with the addition of certain intercalary days (four in an ordinary year and five in a leap year) between the eighteenth and nineteenth months in order to adjust the calendar to the solar year. The Báb named the months after certain attributes of God. The Bahá’í New Year, Naw-Rúz, is astronomically fixed, coinciding with the March equinox (see note 26). For further details, including the names of the days of the week and the months, see the section on the Bahá’í calendar in The Bahá’í World, volume XVIII.