Bahá’u’llah proclaims His station to Czar of Russia, Alexander II

In the Tablet addressed to the Czar of Russia, Alexander II, we read: “O Czar of Russia! Incline thine ear unto the voice of God, the King, the Holy, and turn thou unto Paradise, the Spot wherein abideth He Who, among the Concourse on high, beareth the most excellent titles, and Who, in the kingdom of creation, is called by the name of God, the Effulgent, the All-Glorious. Beware lest thy desire deter thee from turning towards the face of thy Lord, the Compassionate, the Most Merciful… 

Beware lest thy sovereignty withhold thee from Him Who is the Supreme Sovereign. He, verily, is come with His Kingdom, and all the atoms cry aloud: ‘Lo! The Lord is come in His great majesty!’ He Who is the Father is come, and the Son [Jesus], in the holy vale, crieth out: ‘Here am I, here am I, O Lord, My God!’, whilst Sinai circleth round the House, and the Burning Bush calleth aloud: ‘The All-Bounteous is come mounted upon the clouds! Blessed is he that draweth nigh unto Him, and woe betide them that are far away.’” 

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