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 for spiritual understanding.
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.” That is our spiritual understanding.
Jesus said, “Most certainly I tell you, unless one is born of water and Spirit, he can’t enter into God’s Kingdom. That which is born of the flesh is flesh. That which is born of the Spirit is spirit.” John 3:5-6
Paul wrote these your spirit blessings.
The grace of our Lord Yeshua the Messiah be with your spirit, brothers [and sisters]. Amen. Gal 6:18
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
The Lord Yeshua the Messiah be with your spirit. Grace be with you. Amen. 2 Timothy 4:22
The grace of our Lord Yeshua the Messiah be with your spirit. Amen. Philemon 1:25
Paul tells us about our own spirit and his.
1 Follow after love and earnestly desire spiritual gifts, but especially that you may prophesy. 2 For he who speaks in another language speaks not to men, but to God, for no one understands, but in the Spirit he speaks mysteries.1 Cor 14:1-2
1 Cor 14:13-17 13 Therefore let him who speaks in another language pray that he may interpret. 14 For if I pray in another language (tongues), my spirit prays, but my understanding is unfruitful.15 What should I do? 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. 16 Otherwise, if you bless with the spirit, how will he who fills the place of the unlearned say the “Amen” at your giving of thanks, seeing he doesn’t know what you say? 17 For you most certainly give thanks well, but the other person is not built up.
We see the work of God our Savior, the Holy Spirit and Jesus Christ our Savior when we received our spirit through the washing of regeneration the moment we believed. Titus 3:4-7
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). John puts regeneration born of God (1 Jn 3:9; 1 Jn 4:7; 5:1; 1 Jn 5:4; 1 Jn 5:18) anointing from the Holy One, begotten of Him (1 Jn 2:20-29). 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).
As Paul puts it, natural man has received the spirit of the world. We have received the spirit which is from God.
1 Cor 2:6-16 We speak wisdom, however, among those who are full grown, yet a wisdom not of this world nor of the rulers of this world who are coming to nothing. 7 But we speak God’s wisdom in a mystery, the wisdom that has been hidden, which God foreordained before the worlds for our glory, 8 which none of the rulers of this world has known. For had they known it, they wouldn’t have crucified the Lord of glory. 9 But as it is written,“Things which an eye didn’t see, and an ear didn’t hear, which didn’t enter into the heart of man,these God has prepared for those who love him.”✡10 But to us, God revealed them through the Spirit. For the Spirit searches all things, yes, the deep things of God. 11 For who among men knows the things of a man except the spirit of the man which is in him? Even so, no one knows the things of God except God’s Spirit. 12 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 by God. 13 We also speak these things, not in words which man’s wisdom teaches but which the Holy Spirit teaches, comparing spiritual things with spiritual things. 14 Now the natural man doesn’t receive the things of God’s Spirit, for they are foolishness to him; and he can’t know them, because they are spiritually discerned. 15 But he who is spiritual discerns all things, and he himself is to be judged by no one. 16 “For who has known the mind of the Lord that he should instruct him?” ✡ But we have Messiah’s mind.
All Scripture quoted above it from the World Messianic Bible.