Hebrews 9:14

how much more shall the blood of Christ, who through the eternal Spirit offered himself spotless to God, purify your conscience from dead works, that ye may serve the living God?

1 Peter 1:19

but with the precious blood of Christ as of a lamb without blemish and without spot:

Treasury of Scripture Knowledge

Summary

Thou shalt not sacrifice unto the LORD thy God any bullock, or sheep, wherein is blemish, or any evilfavouredness: for that is an abomination unto the LORD thy God.

Bible References

Thou shalt

Hebrews 9:14
how much more shall the blood of Christ, who through the eternal Spirit offered himself spotless to God, purify your conscience from dead works, that ye may serve the living God?
1 Peter 1:19
but with the precious blood of Christ as of a lamb without blemish and without spot: