The redshift-corrected NIRSpec spectrum of D40. The top two panels provide the full spectral range of the G235M (left) and G395M (right) spectra, while panels in the bottom row highlight the faint emission lines detected in the G235M spectrum. In each panel, key spectral features are denoted with vertical dotted lines. The Gaussian+linear continuum fits to the emission lines are shown in orange. The auroral lines [O III] λ4364 and [S III] λ6314 are detected at high significance, producing the data required to measure, for the first time in a high-z galaxy, simultaneous T _e [O III] and T _e [S III] and the gas-phase abundances from N, O, S, and Ar.