The scriptures have God pleading with them to come and repent, and not to resist Him. Nowhere anywhere in the Bible does it say what Calvinists say that people can't believe and obey God unless He makes them do so, for there would never be a reason to harden people, as you know God has done. Why harden people if they can't believe anyway? Think about it more.
As for God giving them one heart to do the commandment of the king...that is by the word of God. That is about it being God's word and not the king's words.
12 Also in Judah the hand of God was to give them one heart to do the commandment of the king and of the princes, by the word of the LORD.
You have to repent of your sins to have that one heart.
JESUS CAME GIVING REPENTANCE as the Way.
Luke 24:47 and repentance for the forgiveness of sins will be preached in his name to all nations, beginning at Jerusalem.
Matthew 28:19
Therefore go and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit,
Acts 2:38
Peter replied, "Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit.
Acts 5:31
God exalted Him to His right hand as Prince and Savior, in order to grant repentance and forgiveness of sins to Israel.
Acts 10:43
All the prophets testify about Him that everyone who believes in Him receives forgiveness of sins through His name."
Acts 13:38
Therefore let it be known to you, brothers, that through Jesus the forgiveness of sins is proclaimed to you.
Acts 17:30
Although God overlooked the ignorance of earlier times, He now commands all men everywhere to repent.
Acts 26:18
to open their eyes, so that they may turn from darkness to light and from the power of Satan to God, that they may receive forgiveness of sins and an inheritance among those sanctified by faith in Me.'