John 20:19

“JESUS APPEARS TO THE ASSEMBLED DISCIPLES. (Joh 20:19-23) the same day at evening, the first day of the week, the doors being shut where the disciples were assembled for fear of the Jews, came Jesus--plainly not by the ordinary way of entrance. and saith unto them Peace be unto you--not the mere wish that even His own exalted peace might be theirs (Joh 14:27), but conveying it into their hearts, even as He "opened their understandings to understand the scriptures" (Luk 24:45).”

“The same day at evening - On the first day of the week, the day of the resurrection of Christ. When the doors were shut - This does not mean that the doors were fastened, though that might have been the case, but only that they were closed. Jesus had been taken from them, and it was natural that they should apprehend that the Jews would next attempt to wreak their vengeance on his followers. Hence, they met in the evening, and with closed doors, lest the Jews should bring against them the same charge of sedition that they had against the Lord Jesus. It is not certainly said what was the object of their assembling, but it is not unreasonable to suppose that it was to talk over the events…”

“Mar 16:14; Luk 24:36. John 20:21”

“20:19 meeting behind locked doors: The disciples feared prosecution for following Jesus. • Peace be with you: This was a standard Jewish greeting (see also 3 Jn 1:15), but Jesus was doing more than just greeting his disciples: he was offering the Messiah’s peace (see Isa 9:6; 52:7) and delivering the gift of his Kingdom (see John 14:27; 16:33).”

“the same: Mar 16:14; Luk 24:36-49; Co1 15:5 when: Joh 20:26; Neh 6:10, Neh 6:11 came: Joh 14:19-23, Joh 16:22; Mat 18:20 Peace: Joh 20:21, Joh 14:27, Joh 16:33; Psa 85:8-10; Isa 57:18, Isa 57:19; Mat 10:13; Luk 24:36; Rom 15:33; Eph 2:14, Eph 6:23; Phi 1:2; Th2 3:16; Heb 7:2; Rev 1:4 John 20:20”