The Summons of the Lord of Hosts is a collection of the tablets of Baháʼu'lláh, founder of the Baháʼí Faith, that were written to the kings and rulers of the world during his exile in Adrianople and in the early years of his exile to the fortress town of Acre (now in Israel) in 1868. Baháʼu'lláh claimed to be the Promised One of all religions and all ages and summoned the leaders of East and West to recognize him as the promised one.