John 20:26

After eight days. That is, “eight days” inclusive, or the following Sunday (see p. 249; see Additional Note on Matthew 28). The new meeting, according to Jewish reckoning, took place one week later, perhaps again in the evening (see on v. 19). See pp. 248-250 for the system of reckoning.

Some have attached special significance to the fact that this second meeting of Jesus with the disciples took place on the first day of the week. They have urged that this was the beginning of the memorial of the resurrection day, the occasion for the sanctification and setting apart of Sunday as a day of worship. Surely, if such had been the purpose of the gathering, we would expect some mention of so important a fact. But there is not the least hint of such a purpose. On the other hand, the narrative does provide a valid reason for the meeting’s taking place at that time — the skeptical disciple, Thomas, happened to be present, and Jesus came to strengthen his faith.

Doors being shut. Probably, as on the earlier occasion, for fear of the Jews (see on v. 19).

Peace be unto you. The greeting is the same as on the previous occasion (v. 19).