The electronic ground state and magnetic properties of the wide-gapped antiferromagnetic insulator ${\mathrm{LaFeO}}_{3}$ have been investigated by $^{57}\mathrm{Fe}$ M\"ossbauer spectroscopy at pressures up to 63 GPa and temperatures of 7--300 K. Two separate magnetic-electronic phase transitions have been identified in the measured pressure range. At 300 K a new nonmagnetic phase begins to evolve at \ensuremath{\sim}30 GPa and coexists in ever increasing abundance with the original magnetic phase at pressures up to \ensuremath{\sim}45 GPa. In the range 45--55 GPa and 300 K the spectrum is comprised solely of a nonmagnetic phase having a single Fe site. Spectra recorded at 48 GPa and temperatures down to 7 K exhibit features of paramagnetic hyperfine structure. The results are consistent with a progressive transition from a magnetically ordered state to that of a spin-disordered state in the range 30--45 GPa. At 300 K and higher pressures of 55--63 GPa the nonmagnetic spectra show features of two sites with similar isomer shifts but different quadrupole splittings. Pressure evolution of the hyperfine interaction parameters and the magnetic transition at 30--45 GPa may be explained by a change of the original Fe high-spin state, namely, spin crossover to a low-spin configuration. The two sites at 55--63 GPa have been attributed to the coexistence of different charge states at crystallographically equivalent sites. These distinct charge states are supposed to represent both low-spin Fe(III) and Fe(II) as a result of fluctuations across a ligand-to-metal charge-transfer gap \ensuremath{\Delta}\ensuremath{\sim}${\mathit{k}}_{\mathit{B}}$T that has been reduced under high pressure.