July 31

Say: O concourse of Christians!  We have, on a previous occasion, revealed Ourself unto you, and ye recognized Me not. This is yet another occasion vouchsafed unto you. This is the Day of God; turn ye unto Him. He, verily, hath come down from heaven even as He came down the first time, and He desireth to shelter you beneath the shade of His mercy. He, verily, is the Exalted, the Mighty, the Supreme Helper. The Beloved One loveth not that ye be consumed with the fire of your desires. Were ye to be shut out as by a veil from Him, this would be for no other reason than your own waywardness and ignorance. Ye make mention of Me, and know Me not. Ye call upon Me, and are heedless of My Revelation, notwithstanding that I came unto you from the heaven of pre-existence with surpassing glory. Rend the veils asunder in My name and through the power of My sovereignty that ye may discover a path unto your Lord. 
- Baha'u'llah  (Tablet to Pope Pius IX, Suriy-i-Haykal [Tablet of Temple]; ‘The Summons of the Lord of Hosts’)