Italics show where there are differences between The Savoy Declaration and the Westminster Confession (WCF). Following the clickable link will take you to the full wording of the WCF clause or sentence.
The Savoy Declaration was a declaration and statement of faith prepared in 1658 by a conference of English Congregationalists who met at Savoy Palace, London
It consisted of three parts: a preface, a confession of faith, and a platform of discipline. In matters of doctrine it was primarily a restatement (with some modifications) of the Presbyterian Westminster Confession (1646), but was specifically adapted to suit Congregational polity.
Information kindly used from theopedia.com
