What does Revelation 2:29 mean?

Jesus concludes His letter to the church at Thyatira by challenging the recipients of these letters to hear what the Spirit says. Since all of the messages are included in a single written form, it seems that Jesus wants each church to read, and understand, the messages given to other churches, as well as to their own. Undoubtedly the followers of Jezebel (Revelation 2:20–21) would not heed the Spirit's message, but the faithful remnant would hear and obey it.

How one hears the Word of God is extremely important. James tells us we should not simply hear God's Word and immediately forget it. Instead, James calls for obeying what we hear. The hearer and doer of the Word, James declares, will be blessed in what he does (James 1:25).

In Matthew 7:24–27 Jesus compared two kinds of hearers of His words to two kinds of builders. The doer of Jesus' words is like a wise builder who constructed His house on a rock. When a heavy downpour and floods pushed against the wise man's house, it stood firm. However, a foolish man built his house on sand. When heavy rain fell and floods came, the foolish man's house collapsed. Similarly, a wise person will obey Jesus' words and enjoy a secure life, whereas a foolish person will ignore Jesus' words and experience ultimate calamity.