Why is it significant that not all Israelites believed?

The sermon discusses the distinction between those who were outwardly part of the Israelite community and those who genuinely believed. While all the Israelites were physically liberated from Egypt, many did not possess the faith needed to enter into God's promised rest. This mirrors the reality within the church today, where not all who identify as Christians demonstrate true saving faith. Hebrews 3:16-19 makes clear that unbelief leads to judgment, highlighting the importance of personal faith in experiencing spiritual salvation. This calls God's people to examine their hearts and ensure they have received the genuine gospel, which is transformative and requires the new birth.