It has EVERYTHING to do with "this."
The Bible records Yahweh's Redemptive history. From the first prophecy of Elohim's Redeemer in Genesis 3:15, to the separations of Yahweh's people from the rest of the Adamites beginning in Genesis 12 and then again in Genesis 17, and culminating with the creation of two ethnic peoples in Genesis 17 (Hebrew and non-Hebrew Gentiles) in which Yahweh set apart Abram the Hebrew and his eventual seed through Isaac, Jacob, and Jacob's twelve sons and their descendants all of which enjoy the blessings and covenant with Abraham. God has made no covenant with these non-Hebrew Gentiles. None.
Later, Yahweh continues with His people and their progressive redemption by delivering the children of Israel from their bondage in Egypt as stated in the dark prophecy to Abraham in Genesis 15. Here, Yahweh took His people into the desert, Made a companion covenant with them in which He gave them His Law for living and life as well as instructions directly related to His worship, and continued His Promise to send a Redeemer, Messiah, and King.
In time God kept His promises made to the children of Israel and sent their Redeemer, who was crucified, but that through this act of God has now been given the authority and the means upon which to finally save His Chosen people Israel. All this is historical and Biblical.
You post this passage and interpret it with a Gentile mindset, as though this letter is written to Gentile at Rome. It isn't. The oracles of God are given to His Covenant people, and this identifies Jews who have been baptized into the body of Christ through the Holy Spirit of Promise, a Holy Spirit Promised to Yahweh's people as per covenant.
27 And he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God.
28 And we know that all things work together for good to them that love God, to them who are the called according to his purpose. Rom. 8:26–28.
The context of "those that love God" are to the Jews. In fact, Jewish Christians.
First thing to understand is that in Hebrew Scripture God calls His people "saints."
Second, the Greek text has the definite article in front of the word "called" making the "called" a specific group of people, in other words, the children of Israel who were called by Yahweh out of Egypt. The same "called" used of baby Jesus whom Yahweh called out of Egypt. Thus, all the discussion of the history of the Jewish people Saul brings up in his letter to Jewish Christians at Rome, all the discussion of their culture, Abraham, Moses, the Law, the Tabernacle, the prophets and their prophecies, the bringing up of Temple practices and everything having to do with Yahweh's planned and Promised redemption of His covenant people are described written in this letter things no hard-core, uncircumcised, non-covenant Gentile would know. To understand all Saul writes about one would have to have a deep working knowledge of the Hebrews and their way of life, which is something Roman, Scythian, Greek Gentiles would not know.
I mentioned the history and the Biblical of Yahweh's covenants with this people, the apple of His eye, but you miss its teaching because you have been groomed and indoctrinated with an anti-biblical re-interpretation of the Hebrew covenants and the Hebrew Scriptures. Here's the gist of it. Let's see if the Word of God has any effect upon your mind.
From the garden Yahweh has spent six thousand years dealing with a certain group of people called the Hebrews/Jews. Yahweh has made covenant promises with this people all beginning with Abraham. Yahweh has enjoined this people in three salvation covenants, sent prophets, gave the His Law, and raised them up as though they are His only child, and they are. Yet, after all this time spent dealing with this people and finally taking them into a New Covenant - one made with the Hose of Israel - that once this New Covenant has been initiated and sealed with the Holy Spirit of Promise that His first words in this covenant era of redemption of Israel are to hard-core, uncircumcised, non-covenant, idol-worshiping Roman, Scythian, and Greek Gentiles???
LOL.
As I said, you need to bring your doctrine and beliefs in line with the historical and Biblical record of Yahweh's redemption of His CHOSEN people the Jews.
Shortly, the Times of the Gentiles will end, and Yahweh will turn His attention back to Israel, remove their blindness, send the two witnesses to lead them into ways of everlasting, and they will come to realize that the writings from Matthew to Revelation were meant for them, and Christ will pick up where He left off at the destruction of the Jewish Temple and began anew to rebuild His Church as per prophecy and covenant for Yahweh still has many prophecies and covenant particulars to fulfill towards His covenant people.
All that Gentile propaganda you've been indoctrinated in is dung when compared to the true historical and Biblical history of Yahweh's redemption of His covenant people the Jews.
THAT'S what it has to do with Romans 8:28, and all of Saul's letters to his Jewish Christian brethren. Stop reading the Bible with a Gentile mindset and, just maybe you'll come to the knowledge of the truth.
I said, maybe.
