Hebrews 6:5 - Matthew Poole's English Annotations on the Holy Bible

And have tasted the good word of God; so as to relish comfort and sweetness in the doctrine and promises of the gospel through self-flattery; for these hearing of pardon of sin, and crediting it, are filled with joy by it; as a condemned malefactor, hearing of a general pardon, believeth himself to be one of the pardoned, and rejoiceth in it: see Matthew 13:20,21 Lu 8:13. So did many of the Jews rejoice in John's doctrine, 1 Thessalonians 5:35. And the powers of the world to come; thus some of them were affected with the powerful doctrines of the gospel, concerning the final judgment, as their natural conscience was wrought on by the Spirit in the word, that they feel it as it were begun in them, the sparks of the wrath of God having set their consciences in a light flame for their sins, as in a Felix, Acts 24:25. As on the other hand, being acquainted by the Spirit in the word, of Christ's being a Redeemer, to save them from the wrath to come, and to instate them into happiness, beyond what is attainable on earth; self-love doth externally close with the revelation and apply it to itself, as Balaam did, Numbers 23:10. All these five instances are the workings of the Holy Spirit on corrupt nature for its improvement, and in their falling from these supernatural operations, they do sin in tanto against the Holy Ghost.