What is Hebrews 6:4-8 about? 1.Believers who lost their eternal salvation? 2. People who professed to be believers but were not? 3. Believers who were in danger of receiving divine discipline but not in danger of losing their salvation?

Hebrews 6:6 and then have fallen away [become negative toward God and His Word], it is impossible to renew them again to repentance [teach them again the list of fundamental doctrines], since they again [as long as they continue to] crucify to themselves the Son of God [get back into sacrificing animals again], and put Him [Christ] to open shame [by alleging that His sacrifice was not sufficient].

Hebrews 6:7... For ground [a believer] that drinks the rain [learns B.D.] which often falls upon it [consistency] and brings forth vegetation [divine good, gold, silver, & precious stones] useful to those [who benefit] for whose sake it [the vegetation, d.g.] is also tilled [produced], receives a blessing from God;

Hebrews 6:8 but if it [a believer] yields thorns and thistles [human good, wood, hay, & stubble], it [the believer] is worth- less and close to being cursed [experiencing the Sin Unto Death], and it ends up being burned [the production, (thorns & thistles/human good), of the land/believer is destroyed].