Matthew 12:5

And have not you read in the law that, on the Sabbath, the priest in the Temple break the Sabbath and yet are not guilty?

John 7:22-23

But that is why Moses has instituted circumcision among you- -not, indeed, that it began with him, but with our ancestors--and that is why you circumcise even on a 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
But that is why Moses has instituted circumcision among you- -not, indeed, that it began with him, but with our ancestors--and that is why you circumcise even on a Sabbath.