Hebrews 4:2

What is the "good news" that both the Israelites and the original readers of this epistle had heard preached to them? It was probably the news about their inheritance and the possibility of entering into their rest. This seems clear from the context. This is not a reference to the gospel message. The good news the Israelites heard did not profit them because they refused to trust God but rebelled against Him. Likewise the good news of our inheritance and rest may not profit us if we fail to trust God but turn from Him in unbelief. By inheritance Moses and this writer meant all that God wanted and wants to give His people. We will all receive many blessings even if we apostatize, because we are God’s children whom He has promised to glorify (1 Peter 1:3-9). Nevertheless we will not enter into full rest or experience all we could inherit if we depart from God.