Understanding and applying spiritual things with our spirit is beyond human comprehension. Yet we can understand and apply them, for God our Father has blessed us with a spirit.
Blessed be the God and Father of our Lord Jesus Christ, who hath blessed us with every spiritual blessing in the heavenly places in Christ. Eph 1:3 ASV
In addition to our body and soul, God has blessed us with a spirit. “The Spirit himself bears witness with our spirit, that we are children of God.”
So then, brethren, we are debtors, not to the flesh, to live after the flesh: for if ye live after the flesh, ye must die; but if by the Spirit ye put to death the deeds of the body, ye shall live. For as many as are led by the Spirit of God, these are sons of God. For ye received not the spirit of bondage again unto fear; but ye received the spirit of adoption, whereby we cry, Abba, Father. The Spirit himself beareth witness with our spirit, that we are children of God: and if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified with him. Romans 8:12-17 ASV
Paul was inspired by God to write these blessings pertaining to our spirit to the Galatians and Thessalonians, and to Timothy and Philemon and to us.
The grace of our Lord Yeshua the Messiah be with your spirit, brothers [and sisters]. Amen. Gal 6:18 WMB
May the God of peace himself sanctify you completely. May your whole spirit, soul, and body be preserved blameless at the coming of our Lord Yeshua the Messiah. 1Th 5:23 WMB
The Lord Yeshua the Messiah be with your spirit. Grace be with you. Amen. 2 Timothy 4:22 WMB
The grace of our Lord Yeshua the Messiah be with your spirit. Amen. Philemon 1:25 WMB
Paul tells us about our own spirit and his.
Follow after love; yet desire earnestly spiritual gifts, but rather that ye may prophesy. For he that speaketh in a tongue speaketh not unto men, but unto God; for no man understandeth; but in the spirit he speaketh mysteries.
Wherefore let him that speaketh in a tongue pray that he may interpret. For if I pray in a tongue, my spirit prayeth, but my understanding is unfruitful. What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also. Else if thou bless with the spirit, how shall he that filleth the place of the unlearned say the Amen at thy giving of thanks, seeing he knoweth not what thou sayest? For thou verily givest thanks well, but the other is not edified. 1 Cor 14:1-2, 13-17 ASV emphasis added
We see the work of God our Savior, the Holy Spirit and Jesus Christ our Savior when we received our spirit the moment we believed.
But when the kindness of God our Savior and His love for mankind appeared, He saved us, not on the basis of deeds which we have done in righteousness, but according to His mercy, by the washing of regeneration and renewing by the Holy Spirit, whom He poured out upon us richly through Jesus Christ our Savior, so that being justified by His grace we would be made heirs according to the hope of eternal life. Titus 3:4-7 NASB
The washing of regeneration is our again birth.
The word “regeneration” comes from Greek root words translated “again/pálin ” and “birth /genesis.” N. T. Wright puts washing of regeneration “washing of the new birth.” The Kingdom New Testament
Jesus explains the washing of regeneration as being born again, born of water and spirit, born of the Spirit (Jn 3:1-8).
Paul puts regeneration made alive, made alive together with Christ, created in Christ Jesus (Eph 2:1-10).
Peter puts regeneration being born again of incorruptible seed through the word of God (1 Peter 1:22-23). We are the offspring of God (Acts 17:28-28).
The magnitude of the blessing of being regenerated and given a spirit in addition to our body and soul is vividly shown to us by Jesus.
Jesus put the huge difference between God’s blessings of the old covenant and His blessings of the new covenant in terms of the kingdom. He pointed to John the Baptist, the last of the old covenant prophets and the Law as His example.
“Truly I say to you, among those born of women there has not arisen anyone greater than John the Baptist! Yet the one who is least in the kingdom of heaven is greater than he. Mt 11:11 NASB
The least in the kingdom is greater than the greatest of the Old Covenant.
In John 3, Jesus explains the difference is in being born of the Spirit as spirit. “Unless one is born again he cannot see the kingdom of God.” “Unless one is born of water and the Spirit he cannot enter into the kingdom of God.” “That which is born of the Spirit is spirit.”
Now there was a man of the Pharisees, named Nicodemus, a ruler of the Jews; this man came to Jesus by night and said to Him, “Rabbi, we know that You have come from God as a teacher; for no one can do these signs that You do unless God is with him.” Jesus answered and said to him, “Truly, truly, I say to you, unless one is born again he cannot see the kingdom of God.”
Nicodemus said to Him, “How can a man be born when he is old? He cannot enter a second time into his mother’s womb and be born, can he?” Jesus answered, “Truly, truly, I say to you, unless one is born of water and the Spirit he cannot enter into the kingdom of God. That which is born of the flesh is flesh, and that which is born of the Spirit is spirit. Do not be amazed that I said to you, You must be born again. The wind blows where it wishes and you hear the sound of it, but do not know where it comes from and where it is going; so is everyone who is born of the Spirit.” Jn 3:1-8 NASB
Natural man has received the spirit of the world. We have received the spirit which is from God.
But unto us God revealed them through the Spirit: for the Spirit searcheth all things, yea, the deep things of God. For who among men knoweth the things of a man, save the spirit of the man, which is in him? even so the things of God none knoweth, save the Spirit of God. But we received, not the spirit of the world, but the spirit which is from God; that we might know the things that were freely given to us of God. Which things also we speak, not in words which man’s wisdom teacheth, but which the Spirit teacheth; combining spiritual things with spiritual words.
Now the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him; and he cannot know them, because they are spiritually judged. But he that is spiritual judgeth all things, and he himself is judged of no man. For who hath known the mind of the Lord, that he should instruct him? But we have the mind of Christ. 1 Cor 2:10-16 ASV
You are a new creature, part of the spiritually regenerated human race. “For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand so that we would walk in them” (Eph 2:10).
Walk in God connections. Build up those you love. Mutually thrive in one another relationships.
So I, a prisoner in the Lord, urge you to live as people whom God has called should live. Be humble and gentle in every way, be patient and lovingly bear with one another. Do your best to keep the oneness of the Spirit by living together in peace: one body and one Spirit—even as you have been called to share one hope—one Lord, one faith, one baptism, one God and Father of all, who rules over us all, works through us all, and lives in us all. Ephesians 4:1-6 AAT