Our own spirit does not by nature impel us to call God our Father and to count ourselves among his children. There is an essential and easily recognizable difference between the witness of the Holy Spirit, when he says to our soul, “I am your salvation,” and the temptation of Satan, when he whispers, “Peace, peace, and no danger.” “Can a person, impelled by the devil, possibly call God Abba! Father! in faith?” Christian faith points back to the testimony of the Holy Spirit. “Though theology scoffs and philosophy scorns, God himself is the final ground of my faith in God.” (Beets).
Reformed Dogmatics Vol. 1: Prolegomena (Grand Rapids, Michigan; Baker Academic; 2003) p. 593.