At the Last Supper, Jesus identified Judas as His betrayer, foretold that Peter would thrice deny Him, established the basis for the Eucharist, and commandment-love thy brotheretc
Afterward Jesus took his disciples to the Garden of Gethsemane on the western slope of the Mount of Olives, to pray.
Even though God sends an angel to strengthen Him, Jesus prays so fervently " His sweat was as it were great drops of blood falling down to the ground".
establshe new convenat, eucharist etc in preparation for His death
After Jesus prayed, Judas Iscariot arrived with a multitude of soldiers, high priests, Pharisees, and servants to arrest Jesus