Complex sentence: For example, cessationists fully believe that God could, if He so chose, enable a person today to speak a language he/she has never learned; cessationists are careful, however, to avoid calling that, "the New Testament gift of tongues".
Split into simpler sentences: For example, cessationists fully believe that God could enable a person today to speak a language he/she has never learned. However, cessationists are careful to avoid calling that "the New Testament gift of tongues".