Hebrews 3:18-19 (NLT2)
18 And to whom was God speaking when he took an oath that they would never enter his rest? Wasn’t it the people who disobeyed him?
19 So we see that because of their unbelief they were not able to enter his rest.
Our hearts turn away from the living God when we stubbornly refuse to believe Him. If we persist in our unbelief , God will eventually leave us alone in our sin. But God can give us new hearts, new desires, and new spirits( Ezekiel 36:22-27).
How do we prevent from having an unbelieving heart?(1) stay in fellowship with other believers(2) talk daily about your faith in Christ(express it); (3) be aware of the deceitfulness of sin(it attracts but also destroys); and (4) encourage each other with love and concern.