And say ... - 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 mere pretence.

We would not have been partakers - They imagined themselves much better than their ancestors; but our Lord, who knew what they would do, uncovers their hearts, and shows them that they are about to be more abundantly vile than all who had ever preceded them.

And say, if we had been in the days of our fathers,.... Their ancestors and predecessors: signifying, that if they had lived in the times they did, or had been in the same post and office with them, they should have opposed, at least not consented to their measures:

we would not have been partakers with them in the blood of the prophets; would not have joined them in persecuting the prophets, and in shedding their blood, and putting them to death; but would have received them as the prophets of the Lord, have hearkened to their advice and message, and have honoured and obeyed them as such; and this they thought they sufficiently declared, by building and adorning their tombs.

And say, If we had been in the days of our fathers, we would not have been partakers with them in the blood of the prophets.

23:29,30 Ye build the tombs of the prophets, etc. They honored the prophets and saints by building monuments to them, instead of following their teaching, or imitating their lives. Even Herod the Great, a monster of wickedness, rebuilt the tomb of David.

23:30 We would not have been partakers - So ye make fair professions, as did your fathers.

23:13-33 The scribes and Pharisees were enemies to the gospel of Christ, and therefore to the salvation of the souls of men. It is bad to keep away from Christ ourselves, but worse also to keep others from him. Yet it is no new thing for the show and form of godliness to be made a cloak to the greatest enormities. But dissembled piety will be reckoned double iniquity. They were very busy to turn souls to be of their party. Not for the glory of God and the good of souls, but that they might have the credit and advantage of making converts. Gain being their godliness, by a thousand devices they made religion give way to their worldly interests. They were very strict and precise in smaller matters of the law, but careless and loose in weightier matters. It is not the scrupling a little sin that Christ here reproves; if it be a sin, though but a gnat, it must be strained out; but the doing that, and then swallowing a camel, or, committing a greater sin. While they would seem to be godly, they were neither sober nor righteous. We are really, what we are inwardly. Outward motives may keep the outside clean, while the inside is filthy; but if the heart and spirit be made new, there will be newness of life; here we must begin with ourselves. The righteousness of the scribes and Pharisees was like the ornaments of a grave, or dressing up a dead body, only for show. The deceitfulness of sinners' hearts appears in that they go down the streams of the sins of their own day, while they fancy that they should have opposed the sins of former days. We sometimes think, if we had lived when Christ was upon earth, that we should not have despised and rejected him, as men then did; yet Christ in his Spirit, in his word, in his ministers, is still no better treated. And it is just with God to give those up to their hearts' lusts, who obstinately persist in gratifying them. Christ gives men their true characters.