If anything, the religious rulers of Jesus’ day were Antinomians, not Legalists. They did not “stretch” the Law of God, they “shrunk” it.

All knowledge, power, and revelation are entrusted to Christ. Jesus is the sole Mediator. “No one knows the Father except the Son and those he chooses to reveal him to…” The knowledge of God is obtained solely through the Son, and outside of Christ, there is nothing but blindness. Furthermore,the text says, “to whom the Son chooses to reveal Him.” …
“In the name that should be given to her Son: Thou shalt call his name Jesus, a Saviour. Jesus is the same name with Joshua, the termination only being changed, for the sake of conforming it to the Greek… There were two of that name under the Old Testament, who were both illustrious types of Christ, Joshua who was Israel’s …
Once again, we see the spiritual blindness and hostility of the Pharisees. These religious men are so puffed up with their own righteousness that they would demand signs from the Son of God Himself. They cry, “Teacher, we wish to see a sign!”—as if Christ had not already healed the sick, cast out demons, raised the dead, and preached the …
If a man should lose his saltiness, he is only good to be thrown out and trampled by men. Yet, even this has its divinely gracious purpose. When the roads and walkways are slick from snow and ice, we may throw out salt so that pedestrians do not trip and fall.
Jesus is not merely addressing the need for a superior “positional” righteousness (justification). He is also speaking to the need for a superior “progressive” righteousness (sanctification). In other words, Jesus is not saying, “The Pharisees have a meticulous outward righteousness, but inwardly, their hearts remain corrupted. Therefore, you merely need to receive the superior inward righteousness of Christ by faith.” …