Amazing Grace for Orchestra, SATB with congregation 2019 Edition
The quintessential sacred version of Amazing Grace for congregation, choir and orchestra – for four stanzas. It is suggested that you use a child solo on the first verse. This begins in the key of Eb and modulates up each stanza to the key of G. This is very singable and can be used with or without choir. The choir parts are fairly standard. See the score sample for a list of all instruments. Note that there are sax sub parts and this will work with 4 percussionists or more. The string parts are a bit more advanced. Ask about other instruments.
Be sure to listen and view the midi score here on YouTube
https://youtu.be/O8dfAC5s_Ms