If you can count to one, you have the ability to understand what it takes to be saved. In case you need a refresher course in arithmetic, one is more than zero and less than two. This is how simple it is to become and remain a Christian.
According to the scripture, “There is one body, and one Spirit, even as you are called in one hope of your calling; One Lord, one faith, one baptism, One God and Father of all who is above all, and through all, and in you all” (Eph. 4:4-6). Using the knowledge of arithmetic we can see that there is less than two bodies, less than two Spirits, less than two Gods, less than two Lords, less than two faiths, and less than two baptisms. This one body is also called the church. Jesus is the head of this one body. As the apostle Paul said, “And hath put all things under his feet, and gave him to be the head over all things to the church, which is his body, the fullness of him that fills all in all” (Eph 1:22,23). And again he said, “He is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all things he might have the preeminence” (Col 1:18). “For by one Spirit are we all baptized into one body…” (1 Cor 12:13). Christians collectively are the body (church) of Christ, and members individually (1 Cor 12:27).
Jesus kept things very simple when it came to His church which He bled and died for (Acts 20:28). In fact, it is too simple to ever be misunderstood. The equation goes like this: One faith + One Baptism= Salvation “IF” one remains Faithful unto death (Mk 16:16 f; Rev 2:10). Are you a member of the Lord’s body, the one body, the one church, the church of Christ? If not, why not?