Ezekiel 36:27

And I will put my Spirit within you
My Holy Spirit, as the Targum; the Spirit of holiness; the author of internal sanctification, of the new heart and spirit, and of the fleshy one before mentioned; and through whose grace and strength the saints do what is after said they shall do: and cause you to walk in my statutes:
men are first made alive by the Spirit of God, and have spiritual strength put into them, who of themselves can do nothing; by means of which they are enabled to walk in all the commandments and ordinances of the Lord, and to continue in the observation of them; which walking in them supposes: and ye shall keep my judgments, and do them;
being constrained by the love of God; influenced by the grace of Christ; and strengthened by the blessed Spirit: and such persons observe and do them willingly and cheerfully; from a principle of love; in faith, and to the glory of God; without any mercenary and selfish views; without trusting to, and depending upon, what is done for salvation.