God day sister on fire of God. You would not need to look further than this room to se that many here are not in the unity of the Spirit and interpret things according to the mind of the flesh.
Paul referred to immature believers as divided because they behaves like men in the flesh ruled by the sin nature.
Jesus said Let your eye be single and your whole body shall be full of light and if the Light (Spirit) that is in you be evil (divided) how great is that darkness.
Revelation 3:15
"A double minded man is unstable in all His ways." To be in the mind of the Spirit is to become one spirit with God.
Divided between a life for ourselves and a life in God, Is not having obeyed the Word. "Work out your salvation with Fear (Admiration of God) and trembling ("In His presence I fear and quake") for it is God that Is at Work in you to Will and do His good pleasure.
Those who think they own salvation, of the mind set that they have arrived and drawing others to be like them will remain in the nations of the saved where they desire to be, with others like them, nations are divided.
Paul explained the Work of God in us to bring us to the unity of the Spirit and preserve the unity of the Spirit in the bond of peace. We only have the unity of the Spirit by being one Spirit with God, laying down our Life for the beloved Saviour:
"That I may know him, and the power of his resurrection, and the fellowship of his sufferings, being made conformable unto his death; If by any means I might attain unto the resurrection of the dead. Not as though I had already attained, either were already perfect: but I follow after, if that I may apprehend that for which also I am apprehended of Christ Jesus. Brethren, I count not myself to have apprehended: but one thing (Grace), forgetting those things which are behind, and reaching forth unto those things which are before,
I press toward the mark for the prize of the high calling of God in Christ Jesus. Let us therefore, as many as be perfect (Or permitted to Go on to perfection by God, "Let us go on to perfection, and this we will do if God permits), be thus minded: and if in any thing ye be otherwise minded, God shall reveal even this unto you.
A Perfect man:
"For we all stumble in many ways, and if anyone does not stumble in what he says, he is a perfect man, able also to bridle his whole body." "But no man can tame the tongue. It is a restless evil, full of deadly poison."
James who wrote both of these verses and did not give us an explanation that I'm aware. But you should know the answer, Self control is a fruit of the Spirit from dwelling in God. "He that has rule over His Spirit is stronger than he that captures a city." We have rule over our Spirit in the same Way. Those who are divided between a life after the flesh and a life in God are carnal, divided and causing divisions. Without the fullness of the Holy Spirit, we remain divided, "This kind does not come out but by prayer and fasting." "Often he falls into the fire(burning desire), and oft into the water (you can figure this one out)."
Blessed and holy he that hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years." These are Holy, undivided.
“And he that overcometh, and keepeth my works unto the end, to him will I give power over the nations:”
"Behold I come quickly and My reward is with me to give to every man according to His work."