Matthew 12:5

Or, did you never read in the law that the priests in the temple break the sabbath, and yet are not guilty?

John 7:22-23

Then Moses gave you the rite of circumcision -- not that it had its origin with Moses but with your earlier forefathers -- and you circumcise a male child even on the Sabbath.

Treasury of Scripture Knowledge

Summary

Or have ye not read in the law, how that on the sabbath days the priests in the temple profane the sabbath, and are blameless?

Bible References

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John 7:22
Then Moses gave you the rite of circumcision -- not that it had its origin with Moses but with your earlier forefathers -- and you circumcise a male child even on the Sabbath.