The gospel story makes it very clear that the main human problem is sin. We are sinners who sin against each other. We are sinners who respond sinfully to being sinned against. We are sinners who often respond to blessing sinfully. That’s why Jesus came—to save us from our bondage to sin.
If it’s true that sin is the core issue of failing marriages, then we have reason to hope. Why? Because Jesus came to rescue us from the destruction of sin. And he can rescue a marriage from the sin that’s destroying it.
If marriage problems were genetic, there would be trouble because Jesus didn’t come to change genes. If marriage problems are purely circumstantial, we’re in trouble because Jesus never promised to make our lives nice and neat. Since every marriage problem grows in the arid desert of indwelling sin, we are hopeful because God has given Living Water in Jesus Christ. He is a Rescuer. He rescues sinners from their sin. He is our Living Hope.