Baptism, A Sign of God’s Covenant

Ques. 72. Is then the external baptism with water the washing away of sin itself?  Ans. Not at all; for the blood of Jesus Christ only, and the Holy Ghost cleanse us from all sin.  Ques. 73. Why then doth the Holy Ghost call baptism "the washing of regeneration," and "the washing away of our sins"?  Ques. 72. Is then the external baptism with water the washing away of sin itself?  Ans. Not at all; for the blood of Jesus Christ only, and the Holy Ghost cleanse us from all sin.  Ques. 73. Why...