Luke 24:38

Overview - Luke 24
Christ's resurrection is declared by two angels to the women that come to the sepulchre.
These report it to others.
13 Christ himself appears to the two disciples that went to Emmaus;
36 afterwards he appears to the apostles, and reproves their unbelief;
47 gives them a charge;
49 promises the Holy Ghost;
50 and so ascends into heaven.
Treasury of Scripture Knowledge

Luke 24:38  (King James Version)
And he said unto them, Why are ye troubled? and why do thoughts arise in your hearts?

and why
Jeremiah 4:14 ; Daniel 4:5 Daniel 4:19 ; Matthew 16:8 ; Hebrews 4:13