Hosea 6:6 For I desire mercy, and not sacrifice; and the knowledge of God more than burnt offerings...
Hosea 6:9 As gangs of robbers wait to ambush a man, so the company of priests murder on the path toward Shechem, committing shameful crimes.
So the context of both statements asking for 'mercy and not sacrifice' (Matthew 9:13, Matthew 12:7), is saying the priests are a bunch of murderers, who keep killing prophets as atoning sacrifices (Matthew 23:27-36); yet Yeshua is saying it is far better to get the knowledge of God from me, than to murder me.
Don't need to argue anything, the scriptures explain the Pharisees murdered him in the Parable of the Wicked Husbandmen (Matthew 21:33-46, Mark 12:1-12, and Luke 20:9-19), and this is why they made up false texts after to make everyone else believe God did it or Yeshua did it.
Talk about get the wrong end of the stick; suggest you research the Ebionites (Poor Ones), who were the truer followers of Yeshua, who believed the commandments, and giving up wealth were needed for eternal life, like Yeshua taught.
James the Just was said to be their leader, and stood against the Christian idea that jesus was an atoning sacrifice, as it defiles the Law in multiple places.
Is an abomination; Ezekiel 4/5 says i will get the nation of Israel to eat bread made of human dung, and to drink urine, as they've exchanged animal for man; then to desecrate the nation, putting two thirds to the fire, and the sword, and one third to the wind.
So you quote some defiled covenant like a Christian would, having no clue of the Law; you disappoint me, and then say you're waiting for the Messiah to turn up to correct you.