So God set another time for entering his rest, and that time is today. God announced this through David much later in the words already quoted: “Today when you hear his voice, don’t harden your hearts.”
References for Hebrews 4:7
Now if Joshua had succeeded in giving them this rest, God would not have spoken about another day of rest still to come.
So there is a special rest still waiting for the people of God.
References for Hebrews 4:9
For all who have entered into God’s rest have rested from their labors, just as God did after creating the world.
So let us do our best to enter that rest. But if we disobey God, as the people of Israel did, we will fall.
For the word of God is alive and powerful. It is sharper than the sharpest two-edged sword, cutting between soul and spirit, between joint and marrow. It exposes our innermost thoughts and desires.
Nothing in all creation is hidden from God. Everything is naked and exposed before his eyes, and he is the one to whom we are accountable.
So then, since we have a great High Priest who has entered heaven, Jesus the Son of God, let us hold firmly to what we believe.
This High Priest of ours understands our weaknesses, for he faced all of the same testings we do, yet he did not sin.
So let us come boldly to the throne of our gracious God. There we will receive his mercy, and we will find grace to help us when we need it most.