With a crumbling kitchen and sagging floors, our house needed renovation. After large sections of it were demolished, builders began digging a new foundation. Then things got interesting.

As the builders dug, shovel loads of broken plates, 1850s-era soda bottles, even cutlery emerged. Were we built on an old garbage dump? Who knows, but as a result, our engineer said our foundations would need to be dug deeper or else cracks would appear in our walls.

Good foundations make for strong houses. The same is true of our lives. When the Israelites were shaken by their enemies, Isaiah prayed for them to stay strong (Isaiah 33:2-4). But their strength wouldn’t come from bravery or weapons, but by building their lives on God. “He will be the sure foundation for your times,” the prophet said, “a rich store of salvation and wisdom and knowledge” (v. 6). Jesus said something similar, teaching that those who built their lives on His wisdom would withstand life’s storms (Matthew 7:24-25).

A sure sign our foundations need tending is when cracks like aggression, addiction, or marriage problems appear in our lives. When we seek security where it can’t be found or follow the wisdom of this age alone, we’ll be on shaky ground. But those who build their lives on God gain access to all His strength and treasures (Isaiah 33:6).