Can a Christian have one foot in the world and one foot in the church?
No. Scripture declares you cannot serve God and mammon, and a person cannot have one foot in the world and one foot in the church. It simply will not work. One may get by for a while, but such a divided life produces misery. This is strictly forbidden, because fellowship with the Lord cannot coexist with fellowship with the world.
Les teaches that Jesus Himself said, 'You cannot serve God and mammon.' Therefore a believer cannot have one foot in the world and one foot in the church; it just will not work. Les explains that a person may get by for a while, but he will be miserable, and this divided position is strictly forbidden. The context is Paul's argument about the Lord's table: believers must be careful how they practice the Lord's communion, fellowship, or the Lord's table. Paul asks whether we provoke the Lord to jealousy and whether we are stronger than He. He contrasts the Lord's table with fellowship with demons and fellowship with the Lord and His work of the cross. Though Paul says all things are lawful, not all are expedient; being under grace does not mean freedom to do things contrary to the law.