Imperfection or bodily deformity excluding men from the priesthood, and rendering animals unfit to be offered in sacrifice (Lev. 21:17-23; 22:19-25). The Christian church, as justified in Christ, is “without blemish” (Eph. 5:27). Christ offered himself a sacrifice “without blemish,” acceptable to God (1 Pet. 1:19).
Blemish
2 verses
Ephesians
Ephesians 5:27
That he might present it to himself a glorious church, not having spot, or wrinkle, or any such thing; but that it should be holy and without blemish.
1 Peter
1 Peter 1:19
But with the precious blood of Christ, as of a lamb without blemish and without spot:
From Easton's Bible Dictionary
Matthew George Easton, 1897