In 1733 he returned to Altona, where he obtained the permission of the Jewish community to possess a private synagogue. Emden was at first on friendly terms with Moses Ḥagis, the head of the Portuguese community at Altona, who was afterward turned against Emden by some calumny. His relations with Ezekiel Katzenellenbogen, the chief rabbi of the German community, were strained from the very beginning. Emden seems to have considered every successor of his father as an intruder. A few years later Emden obtained from the King of Denmark the privilege of establishing at Altona a printing-press. He was soon attacked for his publication of the "Siddur 'Ammude Shamayim," being accused of having dealt arbitrarily with the text. His opponents did not cease denouncing him even after he had obtained for his work the approbation of the chief rabbi of the German communities.
==View on Noahides==
:''Main article [[Yaakov Emden on Noahides]]''
==Emden-Eybeschütz Controversy.==
Fürst, Bibl. Jud. i. 240-244.
On the controversy between Emden and Eybeschütz see Ha-Shaḥar, vi. 343 et seq., xii. 181-192, 548-552, 602-610, 646-652, 686-692.S. S. M. Sel
