Ephesians 5:27
ESV - 27 So that he might present the church to himself in splendor, without spot or wrinkle or any such thing, that she might be holy and without blemish.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
As it's written several times in Revelation and literally throughout his word. "Those that keep the commandments of God (all of them),and have the (true) testimony of Jesus The Christ.