Bahá’u’lláh invites Pope Pius IX to approach His throne if he feels any yearning to do so

Should the inebriation of the wine of My verses seize thee, and thou determinest to present thyself before the throne of thy Lord, the Creator of earth and heaven, make My love thy vesture, and thy shield remembrance of Me, and thy provision reliance upon God, the Revealer of all power.... Verily, the day of ingathering is come, and all things have been separated from each other. He hath stored away that which He chose in the vessels of justice, and cast into fire that which befitteth it. Thus hath it been decreed by your Lord, the Mighty, the Loving, in this promised Day. He, verily, ordaineth what He pleaseth. There is none other God save He, the Almighty, the All-Compelling. 

- Baha’u’llah  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh counsels Pope Pius IX not to “appropriate unto thyself the things of the world and the riches thereof”

Beware lest thou appropriate unto thyself the things of the world and the riches thereof. Leave them unto such as desire them, and cleave unto that which hath been enjoined upon thee by Him Who is the Lord of creation. Should anyone offer thee all the treasures of the earth, refuse to even glance upon them. Be as thy Lord hath been. Thus hath the Tongue of Revelation spoken that which God hath made the ornament of the book of creation.... 

- Baha’u’llah  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)