Matthew
Matthew 23:30ESV·traditional attribution

saying, ‘If we had lived in the days of our fathers, we would not have taken part with them in shedding the blood of the prophets.’

John Calvin Reformed @genevareformer

30. If we had been in the days of our fathers. Not without good reason did Christ introduce this sentiment; for though he does not blame them for the conduct of their fathers, and does not make it the chief ground of accusation that they are the children of murderers: yet he takes a passing glance of their foolish boasting, in being accustomed to glory...

John Gill Reformed Baptist @doctorgill

Wherefore ye be witnesses unto yourselves,.... Or "against yourselves", as the Syriac reads; for what they said was a plain acknowledgment, and a full confession, what their fathers had done, and whose offspring they were; and from whom better things were not to be expected; since they were their fathers' own children, and of the same temper and disposition with them: that ye are the...

Albert Barnes Presbyterian @notesbybarnes

Verse 30. And say, etc. This they professed to say by rebuilding their tombs. They also, probably, publicly expressed their disapprobation of the conduct of their fathers. All this, in building and ornamenting tombs, was a profession of extraordinary piety. Our Lord showed them it was a mere pretence.