1Therefore leaving the teaching of the first principles of Christ, let’s press on to perfection—not laying again a foundation of repentance from dead works, of faith toward God, 2of the teaching of baptisms, of laying on of hands, of resurrection of the dead, and of eternal judgment. 3This will we do, if God permits. 4For concerning those who were once enlightened and tasted of the heavenly gift, and were made partakers of the Holy Spirit, 5and tasted the good word of God and the powers of the age to come, 6and then fell away, it is impossible to renew them again to repentance; seeing they crucify the Son of God for themselves again, and put him to open shame. 7For the land which has drunk the rain that comes often on it and produces a crop suitable for them for whose sake it is also tilled, receives blessing from God; 8but if it bears thorns and thistles, it is rejected and near being cursed, whose end is to be burned.
9But, beloved, we are persuaded of better things for you, and things that accompany salvation, even though we speak like this. 10For God is not unrighteous, so as to forget your work and the labor of love which you showed toward his name, in that you served the saints, and still do serve them. 11We desire that each one of you may show the same diligence to the fullness of hope even to the end, 12that you won’t be sluggish, but imitators of those who through faith and perseverance inherited the promises.
13For when God made a promise to Abraham, since he could swear by no one greater, he swore by himself, 14saying, “Surely blessing I will bless you, and multiplying I will multiply you.” 15Thus, having patiently endured, he obtained the promise. 16For men indeed swear by a greater one, and in every dispute of theirs the oath is final for confirmation. 17In this way God, being determined to show more abundantly to the heirs of the promise the immutability of his counsel, interposed with an oath, 18that by two immutable things, in which it is impossible for God to lie, we may have a strong encouragement, who have fled for refuge to take hold of the hope set before us. 19This hope we have as an anchor of the soul, a hope both sure and steadfast and entering into that which is within the veil, 20where as a forerunner Jesus entered for us, having become a high priest forever after the order of Melchizedek.
The Holy Spirit is eternally God and the third person of the Trinity. As such, He is fully divine with all of the nature, attributes, and perfections of God. The Spirit of God is the one through whom God empowers His people, reveals His will, has revealed His Word, and imparts His personal presence among His people. He regenerates believers and works to glorify Jesus Christ.
In the New Testament, the Greek word πνεῦμα pneuma (wind, spirit) has similar meaning and range of use. However, the Spirit is given an increasingly prominent role as He empowers and leads Jesus (Luke 3:22, 4:1-2) as well as permanently living in believers and empowering them for service in the Church (Jn. 20:22, 1 Cor. 12:7-11, 1 Jn. 3:24). More often than not the Spirit of God is known in the New Testament as the Holy Spirit, and clearly revealed to be God Himself, though He is also known by other designations, which will be evident in going to the verses that concern the third person of the undivided Trinity. Though His work of revelation ceased with the completion of the New Testament, He continues to work to illuminate the hearts of His people to understand and apply the Scriptures (1 Cor. 2:6-16).