The Four Marks of the Church, sometimes referred to as the Marks of the Church or the Marks of the True Church, are a group of four adjectives describing the true Church as established by Jesus Christ. They are commonly acknowledged by most Christian denominations, as they are included in many of their creeds. The marks are often listed as follows: one, holy, catholic, and apostolic. They refer to four aspects that are intrinsic to the true Church: unity, sanctity, catholicism (or universality), and apostolicity.
“They are commonly acknowledged by most Christian denominations,”
No, they do not believe in one Church. Catholic or otherwise. Protestants believe many different things, but vary on there concept of “Church”. Jesus himself said it was where two or more people gather in His name. Southern Baptists each church(small “c”) is its own communion. The members hire a Pastor and call him “Brother”. They acknowledge no priests, bishops, cardinals, or Popes. If the Pastor commits a crime or just does a poor job, he’s fired. The “Convention” is where individual churches come together. The convention is subservient to the churches, not the other way around. Baptists live democracy in their faith and need no one to intercede for them or to take their confession. They become baptised when they are old enough to make the decision on their own. They have a direct relationship with God.