To be clear, I'm not limiting the soul to the mind. I think the first thing I wrote about it was that our soul is our personal identity, which is, of course, tied to our mind.
I understood you correctly. This is why I wrote, "Is there biblical evidence that the soul and the mind are the same
or that the mind is a component of the soul?"
I think there are a range of opinions about what the soul is. Do these NT references match your understanding?
Thank you for the quotations. These are lovely verses to meditate on but they say nothing about the mind.
John 12:27
“Now my
soul is troubled, and what shall I say? ‘Father, save me from this hour’? No, it was for this very reason I came to this hour.
The primary human psychological functions are cognition, volition, motivation, and affect (feeling or emotion). The quoted verse shows that the soul is the seat of some emotions.
1 Thessalonians 5:23
May God himself, the God of peace, sanctify you through and through. May your whole spirit,
soul and body be kept blameless at the coming of our Lord Jesus Christ.
Spirit, soul, and body are components of human beings. Not necessarily all the components. Compare this to the 4 components mentioned in Luk 10:27.
Hebrews 4:12
For the word of God is alive and active. Sharper than any double-edged sword, it penetrates even to dividing
soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart.
The soul, spirit, and heart are components of human beings.
Hebrews 6:19
We have this hope as an anchor for the
soul, firm and secure. It enters the inner sanctuary behind the curtain,
The soul's anchor is the hope of salvation expressed by God in his promise to Abraham. This hope comforts the soul, which is a seat of emotions.
1 Peter 1:9
for you are receiving the end result of your faith, the salvation of your
souls.
Our souls will also be saved at the resurrection. "Soul" is also frequently used for the whole "person" as in saying, "We have 100 souls in church today."
1 Peter 2:11
Living Godly Lives in a Pagan Society
Dear friends, I urge you, as foreigners and exiles, to abstain from sinful desires, which wage war against your
soul.
Fleshly desires wage war against our soul. They cause emotional upheaval inside us and perturb our inner peace.
1 Peter 2:25
For “you were like sheep going astray,” but now you have returned to the Shepherd and Overseer of your
souls.
What comfort and peace we have knowing that Christ is the shepherd and overseer of our souls. The Apostle Peter seems to like to word "soul." This reminds me of an Assyrian friend, God bless her soul, who spoke Aramaic (the language of Jesus and Peter and John) and used the word "soul" quite often

.
2 Peter 2:8
(for that righteous man, living among them day after day, was tormented in his righteous
soul by the lawless deeds he saw and heard)—
It tormented Lot's soul to look at the sin in his community. We may share a similar experience.
3 John 1:2
Dear friend, I pray that you may enjoy good health and that all may go well with you, even as your
soul is getting along well.
John prays for well-being for his friend's body and soul. Again, stressing the fact that the soul is the seat of emotions.
Revelation 6:9
When he opened the fifth seal, I saw under the altar the
souls of those who had been slain because of the word of God and the testimony they had maintained.
In this vision, Christ is represented as a lamb who opens a seal on a scroll. As the seal is opened, John sees souls (feels the emotions) of those who had been martyred for Christ. Their souls are under the altar of incense, which means that the prayers they prayed continue to exist in the presence of the Lamb.
Revelation 20:4
I saw thrones on which were seated those who had been given authority to judge. And I saw the
souls of those who had been beheaded because of their testimony about Jesus and because of the word of God. They had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ a thousand years.
Again, John sees / feels the emotions of those who had been beheaded. But in Revelation, written later to churches in Asia Minor, John could be using Greek philosophical terminology and by "souls" he meant what the rest of the Bible would call "spirits." This is the traditional interpretation, where spirits of the saints are now reigning w/ Christ in Paradise.
Conclusion: I enjoyed meditating on these verses. But could not find any suggestion that the soul is seat of the mind, let alone that the soul is the mind. It is sad that we got this notion from Greek philosophy and most Christians heard it so often from Christian pastors that they thought it is a biblical concept.