Found the following hamletworks.org entries referring to line 876

View Commentary Note for 875
875 That you knowe ought of me, this {doe sweare,} <not to doe:>1.5.

View Commentary Note for 876
876 So grace and mercy at your most neede helpe you.1.5.180

View Immaterial Textual Note for 876
876 So grace and mercy at your most neede helpe you.1.5.180

View Material Textual Note for 876
876 So grace and mercy at your most neede helpe you.1.5.180