John Lightfoot on Matthew 13:13

[They seeing see not.] Here you may observe this people to have been given up to a reprobate mind, and a spirit of deep sleep, now a great while before the death of Christ. Which being observed, the sense of the apostle will more easily appear, Romans 11:8; where these very words are repeated. If you there state aright the rejection of that people, you will understand more clearly the apostle concerning their call, which is there handled. Pharisaism and the sottishness of traditions had, now a good while ago, thrown them into blindness, stupidity, and hardness of heart; and that for some ages before Christ was born: but when the gospel came, the Lord had his gleanings among them, and there were some that believed, and unto whom the participation of the promises was granted: concerning them the apostle speaks in that chapter: see verse 5. At this present time there is a remnant according to election," &c., which we have observed before at chapter 3:7.