“if indeed you continue in the faith, grounded and steadfast, and are not moved away from the hope of the gospel which you heard, which was preached to every creature under heaven, of which I, Paul, became a minister.”
Two metaphors characterize the true Christian. He is both “grounded and steadfast” in his faith.
“grounded and steadfast”
The word “grounded” suggests a secure foundation as a building that sits upon a rock. The believer lays a foundation of stability when he comes to trust Christ. His foundations were dug deep and solid. The foundation is Jesus Christ (1 Cor. 3:11). The Greek indicates that they were placed on that foundation at one point with permanent results.
The word “steadfast” is literally “settled.” It depicts a steady and firm resolve (1 Cor. 15:58; Heb 10:23). This is a metaphor for spiritual stability. While “grounded” suggests a solid foundation, this term suggests the strength of the building. The Lycus Valley was noted for its earthquakes. They must not be like a house that shakes in an earthquake. They must resist efforts to shake them loose from their foundation, Jesus Christ.
The sub-structure supports the super-structure. The believer stands before God in an unchangeable, unalterable, infallible, eternal state. Our condition may vary because we sin in our current condition. There will be a day when our condition lines up with our position before God in Christ.
A believer must have both a sub-structure and a super-structure, a sure foundation, and a solid structure, which will keep his faith solid.
Do you erect upon the sub-structure (Jesus Christ) a little shanty, lean-to, or pup tent? What a pity that some Christians have such a weak structure to their faith. That is like building a foundation for a skyscraper and erecting a one-story wood building upon it. Yet that is exactly what most Christians do. We have the greatest foundation anyone can secure, the work of Jesus Christ. Look at the skinny little life that we perch upon that foundation!