“Jesus said to them.
‘I am deeply grieved,
Even to death.
καὶ λέγει αὐτοῖς Περίλυπός ἐστιν ἡ ψυχή μου ἕως θανάτου· μείνατε ὧδε καὶ γρηγορεῖτε
This is almost exactly word for word in Matthew, chapter 26:38. Mark indicated that Jesus said to his 3 favorite apostles (καὶ λέγει αὐτοῖς) that he was very sorrowful or deeply grieved (Περίλυπός ἐστιν ἡ ψυχή μου), even unto death (ἕως θανάτου). He wanted them to stay there (μείνατε ὧδε) to watch, and remain awake or vigilant (καὶ γρηγορεῖτε). Thus, began the so-called agony of Jesus in the garden.