(uncommon)Euphemistic form of sweet Jesus. [20th c.]
1945, Jay Tobias, The Minx from Missouri: A Farce in Three Acts[1], Walter H. Baker Company, page 15:
Sweet Moses! Hopes you ain’t plannin’ to appear in public in dat ’breviated swimmin’ suit?
1994, Richard White, Jordan Freeman was My Friend[2], Thorndike Press, →ISBN, page 146:
My fingers flew to my head and felt my hair all over. Sweet Moses! There must have been a half-dozen bows knotted there.
2022 June 15, Becky Harvey, Next Year in Gotham[3], Dorrance Publishing, →ISBN, page 23:
In Judaism 101 we went over the history of the Jewish people, once a week, in one 55-minute session, for about 3 months. Did that cover everything? Sweet Moses, no.