Matthew 23:23

Luke 11:42. J. Lightfoot remarks, 'The tithing of herbs is from the rabbins. This tithing was added by the scribes, and yet approved of by our Saviour, when He saith, “Ye ought not to leave these undone.” The more scrupulous rabbis tithed not only the seeds but the leaves and stalks of these herbs.

Cummin] used in cooking as a condiment.

The weightier matters] Alluding to bat not adopting the rabbinical distinction between the 'heavy' and 'light' precepts of the Law. Among the 'heavy' precepts were the sabbath, circumcision, and the prohibition to profane the Divine Name. Hillel and Shammai differed somewhat in their classification of the 613 precepts which the Law was supposed to contain. Judgment] stands here, by a Hebraism, for 'righteousness.'. Faith] honesty, truthfulness, trustworthiness. These ought ye] i.e. Ye ought to have observed judgment, mercy and faith, and also to have tithed mint, anise and cummin.