When discussing the ground of the church with people, some quote 1 Corinthians 3:11, which says, “Another foundation no one is able to lay besides that which is laid, which is Jesus Christ.” From this verse they concluded that the Lord Jesus is the ground of the church. Their speaking has confused the ground with the foundation. The ground and the foundation are two absolutely different things. The foundation is the lowest part of a building, and the ground is the base upon which the building is placed. Since the church is the dwelling place of God, the building of God, it not only needs a foundation but also needs a ground.
Some people are “wandering” Christians; they do not belong anywhere but come and go from place to place. They are like the wandering stars spoken of in Jude 13….As a Christian, we need to be stable and settled. In order for us to be settled, we need a place, a ground. Because conditions change, we cannot be settled merely based on a condition. We can be settled only in a place. Therefore, both the church and even individual believers need a ground. (Lessons for New Believers, ch. 16, by Witness Lee)