In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise… – Ephesians 1:13

A man who becomes a partaker of divine grace, and receives the new nature, is ever afterwards a partaker of daily helps from God’s Holy Spirit. God the Holy Ghost deigns to dwell in the bosom, of every man whom God has saved by His grace. Is not that a wonderful means of sanctifying? By what process can men be better kept from sin than by having the Holy Spirit Himself to dwell as Vice-regent within their hearts? The Ever- blessed Spirit leads believers to be much in prayer, and what a power for holiness is found in the child of grace speaking to the heavenly Father! The tempted man flies to his chamber, unbosoms his grief to God, looks to the flowing wounds of his Redeemer, and comes down strong to resist temptation. The divine Word also, with its precepts and promises, is a never-failing source of sanctification. Were it not that we every day bathe in the sacred fountain of eternal strength we might soon be weak and irresolute; but fellowship with God renews us in our vigorous warfare with sin. How is it possible that the doctrines of grace should suggest sin to men who constantly draw near to God? The renewed man is also by God’s Spirit frequently quickened in conscience; so that things which heretofore did not strike him as sinful are seen in a clearer light and are consequently condemned. I know that certain matters are sinful to me today which did not appear so ten years ago: my judgment has, I trust, been more and more cleared of the blindness of sin. The natural conscience is callous and hard; but the gracious conscience grows more and more tender till at last it becomes as sensitive as a raw wound. He who has most grace is most conscious of his need of more grace. The gracious are often afraid to put one foot before another for fear of doing wrong. Have you not felt this holy fear, this sacred caution? It is by this means that the Holy Spirit prevents your ever turning your Christian liberty into licentiousness, or daring to make the grace of God an argument for folly. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1735.cfm