Olive oil is symbolically used throughout the Word as a Blessing! It was an olive branch that the dove brought back to Noah. The olive groves were a blessing to Israel from God. Deuteronomy 6. Olive oil was used for lamps. Olive oil was also used to consecrate the priests. Gethsemane is where Jesus prayed before He was arrested and then crucified this is at the slope of the Mount of Olives opposite the Temple Mount.