“No,” they answered, “we have not even heard that there is a Holy Spirit.” (Acts 19:2)
You may have been sealed by the Holy Spirit, when saved, BUT.... Did you receive Him and His power since you believed???

You can ask God and He will give you His Holy Spirit. (Luke 11:13)

Many have not received the Holy Spirit and surrendered to His control so.. THEY live their new life in Christ by their own natural instincts.

But it is much worse to dishonor God's Son and to disgrace the blood of the promise that made us holy. And it is just as bad to insult the Holy Spirit, who shows us mercy. (Hebrews 10:29)