Deuteronomy 15:21

If they have any kind of blemish -- lameness, blindness, or anything else -- you may not offer them as a sacrifice to the Lord your God.

Deuteronomy 17:1

You must not sacrifice to him a bull or sheep that has a blemish or any other defect, because that is considered offensive to the Lord your God.

Leviticus 22:19-25

if it is to be acceptable for your benefit it must be a flawless male from the cattle, sheep, or goats.

Malachi 1:7-8

You are offering improper sacrifices on my altar, yet you ask, 'How have we offended you?' By treating the table of the Lord as if it is of no importance!

Treasury of Scripture Knowledge

Summary

And if there be any blemish therein, as if it be lame, or blind, or have any ill blemish, thou shalt not sacrifice it unto the LORD thy God.

Bible References

General references

Deuteronomy 17:1
You must not sacrifice to him a bull or sheep that has a blemish or any other defect, because that is considered offensive to the Lord your God.
Leviticus 22:20
You must not present anything that has a flaw, because it will not be acceptable for your benefit.
Malachi 1:7
You are offering improper sacrifices on my altar, yet you ask, 'How have we offended you?' By treating the table of the Lord as if it is of no importance!

NET Bible copyright © 1996-2006 by Biblical Studies Press, L.L.C. NetBible