Then you don't believe Yeshua. His description of the "kingdom of heaven" is compared to "a man (the son of man) who sowed good seed in his field. but while the men were sleeping, his enemy (devil) came and sowed tare seed (the gospel of lawlessness) also among the wheat, and went away" (Matthew 13:24-25). The tares and the wheat were allowed to grow together until the "time of the harvest"/end of the age, when the tares would be "gathered" "first" and burned. (Matthew 13:30)
Your narrative is based Peter, the "worthless shepherd" of Zechariah 11:17, and of Paul, the shepherd called "Favor", (Zechariah 11:10), who were to shepherd the "flock doomed for slaughter" (Zechariah 11:7), along with their associates. Yeshua came to fulfill the prophets, and Peter was nominated to fill the position of "Shebna", as head of the "royal household"/church, but in the end, was a shame of your master's house" (Isaiah 22:15-18). His successor, the pope, will "fall" in "that day"/end of the age, and those hanging on to him will be "cut off" (Isaiah 22:25).
As for the last paragraph of Matthew 28, it is not included in some of the early editions, which is to say it was either edited in, or edited out. Not a reliable source, when the editor was the Roman church. As for what Yeshua actually was quoted as saying, he said to not go in the way of the Gentiles (Matthew 10:5) Your canon was cherry picked by the Roman bishop of Alexandria in 367 AD, and is still under debate among the tares themselves. One must separate the chaff from the wheat. A little leaven spoils the whole loaf. Your leaven of the Pharisee of Pharisees, has ruined your whole loaf. Separate out the leaven/hypocrisy of the Pharisee, and all makes sense.