Mat 20:1

For the kingdom of heaven is like unto a man that is an householder, which went out early in the morning to hire labourers into his vineyard.

In this parable the Lord was showing the Judean that they were not privileged any more than the Gentiles that joined the Olive tree or the Vine later. But those who were first called by Grace did not see it as by Grace. They saw it as works. And they wanted to be paid extra for being the first to be called and became hateful and jealous to the latter called late in the day which would refer to you and me as the Gentiles grafted in.

“Matthew 20:11. They murmured — The Jews made the preaching of the Gospel to the Gentiles, a pretence why they should reject that Gospel; as they fondly imagined they were, and should be, the sole objects of the Divine approbation. How they murmured because the Gentiles were made partakers of the kingdom of God; see Acts 11:1, &c., and Acts 15:1, &c.” Adam CLark

Mat 20:12

Saying, These last have wrought but one hour, and thou hast made them equal unto us, which have borne the burden and heat of the day.

Here the Lords message was that the Kingdom of God did not come by work or stife of the self-righteous ones, , but purely Grace and righteous it was!

Mat 20:15

Is it not lawful for me to do what I will with mine own? Is thine eye evil, because I am good?

“Verse Matthew 20:15. Is it not lawful for me — As eternal life is the free gift of God, he has a right to give it in whatever proportions, at whatever times, and on whatever conditions he pleases.

Is thine eye evil — An evil eye among the Jews meant a malicious, covetous, or envious person.” Adam Clarke

“Verse Matthew 20:16. So the last shall be first, and the first last — The GENTILES, who have been long without the true God, shall now enjoy all the privileges of the new covenant; and the Jews, who have enjoyed these from the beginning, shall now be dispossessed of them; for, because they here rejected the Lord, he also hath rejected them.’ Adam Clarke

Jesus gave another parable which illustrates the Vine and the Vineyard in Matthew 21

I will give the common understanding of it as written by the commentary of Adam Clark before dispensational Zionism corrupted our understand. He wrote this in 1826.

Another parable Jesus directed at His country men in Matt 21 also used the idea of a vineyard as a picture of the Kingdom of God

https://www.studylight.org/commentaries/eng/acc/matthew-21.html

This parable was always understood to be a hidden diatribe against the Jewish religion, the Pharisees religion. Jesus used parables and could not plainly speak against them or they would have silenced Him before His time to give up His life.

Today it is watered down due to the influence the Jewish religion has had to infiltrate Christian dogma in the last few centuries.

The parable was about a vineyard and rejection of the vineyard owners own son!

Matthew 21:28-32 First Jesus tells of a parable of two sons and it was during the time the Pharisees were raging and trying to find a way to kill Jesus. But today the pastors say it is directed at the church?

Adam Clark said “A certain man had two sons — Under the emblem of these two sons, one of whom was a libertine, disobedient, and insolent, but who afterwards thought on his ways, and returned to his duty; and the second, a hypocrite, who promised all, and did nothing; our Lord points out, on the one hand, the tax-gatherers and sinners of all descriptions, who, convicted by the preaching of John and that of Christ, turned away from their iniquities and embraced the Gospel; and, on the other hand, the scribes, Pharisees, and self-righteous people, who, pretending a zeal for the law, would not receive the salvation of the Gospel.”

David Guzak said “He answered and said, “I go, sir,” but he did not go: The second son said the right thing and he said it with respect (sir), but he did not do what he said he would.

1. There are many churchgoers that imitate the second son. They admit that the word of God is true.They intend to get serious about it someday.They talk about doing the Father’s work. They keep up the external appearance of religion, but their heart is not right with God. They think that words and promises are enough.”

David is obviating the fact Israel as a nation was being confronted not the Body of Christ today!! This is like taking away the grace given to us in Christ and putting us under the Jewish law again! The pastors today in supporting Israel as a nation are denying the ONE Body of Christ made from both Jews and all the rest of the nations!