What does Hebrews 6:10 mean?

As in verse 9, the writer of Hebrews seeks to comfort those reading the letter. The early parts of chapter 6 were ominous, with warnings about how spiritual immaturity leads to faithlessness and God's judgment. In verse 9, it is made clear that the Jewish Christians reading this letter are not necessarily doomed to this fate. Their good deeds, on behalf of God, are obvious.

This verse continues to emphasize this idea. The idea that God is absolutely fair—or "just"—in His attitude towards their good deeds is a preview of the next passage. The people who were criticized for being spiritually immature, and in danger of "falling away," are at the same time living out a very Christ-like love for others.

This is a useful point to remember when discussing spiritual maturity. According to this passage, a person can serve God, loving others with good works, and yet still suffer from an immature approach to Christian truth. The intent of Scripture here is not to dismiss love and service, of course, but it is also not meant to relax the threat of "falling away." Service to God is a good thing, and a sign of sincerity. But it's important to love truth, and grow in wisdom, just as much as it's important to live out our love for other people.

As in all other New Testament instances, the term "saints" is a general reference to all saved Christians. This is not a special category of religious heroes.