Angels

Intone, O My servant, the verses of God that have been received by thee, as intoned by them who have drawn nigh unto Him, that the sweetness of thy melody may kindle thine own soul, and attract the hearts of all men. Whoso reciteth, in the privacy of his chamber, the verses revealed by God, the scattering angels of the Almighty shall scatter abroad the fragrance of the words uttered by his mouth, and shall cause the heart of every righteous man to throb. Though he may, at first, remain unaware of its effect, yet the virtue of the grace vouchsafed unto him must needs sooner or later exercise its influence upon his soul. Thus have the mysteries of the Revelation of God been decreed by virtue of the Will of Him Who is the Source of power and wisdom.

Bahá’u’lláh, Gleanings from the Writings of Bahá’u’lláh, p. 294

They that have forsaken their country for the purpose of teaching Our Cause — these shall the Faithful Spirit strengthen through its power. A company of Our chosen angels shall go forth with them, as bidden by Him Who is the Almighty, the All-Wise. How great the blessedness that awaiteth him that hath attained the honor of serving the Almighty! By My life! No act, however great, can compare with it, except such deeds as have been ordained by God, the All-Powerful, the Most Mighty. Such a service is, indeed, the prince of all goodly deeds, and the ornament of every goodly act. Thus hath it been ordained by Him Who is the Sovereign Revealer, the Ancient of Days.

Bahá’u’lláh, Gleanings from the Writings of Bahá’u’lláh, p. 334

Angels are also those holy souls who have severed attachment to the earthly world, who are free from the fetters of self and passion and who have attached their hearts to the divine realm and the merciful kingdom. They are of the kingdom, heavenly; they are of the merciful One, divine. They are the manifestations of the divine grace and the dawns of spiritual bounty.

‘Abdu’l-Bahá, Bahá’í World Faith, p. 409

Angels are also those holy souls who have severed attachment to the earthly world, who are free from the fetters of self and passion and who have attached their hearts to the divine realm and the merciful kingdom.

‘Abdu’l-Bahá, Bahá’í World Faith, p. 409

Any soul from among the believers of Bahá’u’lláh who attains to this station, will become known as the Apostle of Bahá’u’lláh. Therefore strive ye with heart and soul -- so that ye may reach this lofty and exalted position, be established on the throne of everlasting glory, and crown your heads with the shining diadem of the Kingdom, whose brilliant jewels may irradiate upon centuries and cycles.

‘Abdu’l-Bahá, Bahá’í World Faith, p. 423

As to the question that the holy and spiritual souls influence, help and guide the creatures after they have cast off this elemental mould-this is an established truth of the Bahá’ís.

‘Abdu’l-Bahá: Tablets of ‘Abdu’l-Bahá, Vol. III, p. 543