The BOC is called one new man never she in the KJV
I am not certain about that verse it could be its talking about the man of sin being taken away
The One New Man is referring to Jew and Gentile being brought together by the Blood of the New Covenant = CHRIST
This is an ongoing Development and will be Perfected/Completed unto Fulfillment when CHRIST Returns.
For He Himself is our peace, who has made both one, and has broken down the middle wall of separation, having abolished in His flesh the enmity,
that is, the law of commandments
contained in ordinances, so as to create in Himself one new man
from the two,
thus making peace, and that He might reconcile them both to God in one body through the cross, thereby putting to death the enmity.
And He came and preached peace to you who were afar off and to those who were near.
For through Him we both have access by one Spirit to the Father. - Ephesians 2:14-15
SHE = the BRIDE of Christ is always referred to as 'female' gender = SHE
This goes all the way back to OT times as well = Hosea ch2
1Say to your brethren, ‘My people,’
And to your
sisters, ‘Mercy
is shown.’
2“Bring charges against your
mother, bring charges;
For
she is not My wife, nor
am I her Husband!
Let her put away her harlotries from her sight,
And
her adulteries from between
her breasts;
3Lest I strip
her naked
And expose
her, as in the day she was born,
And make her like a wilderness,
And set her like a dry land,
And slay her with thirst.
4“I will not have mercy on her children,
For they
are the children of harlotry.
5For their mother has played the harlot;
She who conceived them has behaved shamefully.
For she said, ‘I will go after my lovers,
Who give
me my bread and my water,
My wool and my linen,
My oil and my drink.’