A.T. Robertson Commentary Luke 24:6

"He is not here, but is risen: remember how he spake unto you when he was yet in Galilee," — Luke 24:6 (ASV)

He is not here, but is risen (ουκ εστιν ωδε, αλλα ηγερθη). Another Western non-interpolation according to Westcott and Hort. The words are genuine at any rate in Mr 16:6; Matthew 28:7.

The third day rise again (τη τριτη ημερα αναστηνα). See 9:22; 18:32,33 where Jesus plainly foretold this fact. And yet they had forgotten it, for it ran counter to all their ideas and hopes.