What does Hebrews 6:7 mean?
Verses 7 and 8 are crucial to understanding the correct interpretation of verses 4 through 6. Just as verses 1 through 3 introduced the need for Christians to move beyond shallow faith, verses 7 and 8 explain God's method for restoring those whose immaturity leads to a "falling away." The metaphor given here is a farmer's field, which either responds to rain by producing good crops, or by growing weeds and thorns. Productive fields are blessed. Weed-choked fields are not destroyed or discarded. Rather, they are burnt in order to clear all of those negative growths away.Paired with the warnings of verses 4, 5, and 6, the meaning of this metaphor is more clearly understood. Christians whose faith is shallow, and who "fall away" into doubt and disobedience, are beyond the help of other men in coming back to a full faith (Hebrews 6:4–6). Such people are, in practice, siding with the world which crucified Christ. God's method, then, is the same as that of the farmer: fire. In Scripture, fire is a frequent symbol of divine judgment (Hebrews 10:26–29; Isaiah 10:17).
The ultimate example of this, as used in the book of Hebrews, is the nation of Israel. The Jewish people doubted God and disobeyed Him at the borders of the Promised Land. This resulted in severe judgment, after which the nation was finally able to move on (Numbers 13—14). This living example is a major theme explored in chapters 3 and 4 of this book (Hebrews 3:12–19; 4:11). This is the overall context of this passage. The purpose is not to imply a loss of salvation, but the danger of being "disqualified" and judged accordingly, before one can be restored (1 Corinthians 9:27).