And the Jews' passover was near at hand: and many went out of the country up to Jerusalem before the passover, to purify themselves.
All Commentaries on John 11:55 Go To John 11
Cyril of Alexandria
AD 444
Passing over everything else, the Evangelist goes on to the time of the passion. And he calls it the passover of the Jews typically; for [he refers to] the true Passover, not of the Jews, but of Christians, who eat the Flesh of Christ the true Lamb. And, according to the ancient custom, those who had sinned whether wilfully or through inadvertence purified themselves before the feast; and the typical passover was not shared in by any gentile, or un-circumcised person, or stranger, or hired servant, or unclean person; all which types are spiritually fulfilled in the case of Christians.