Sensus fidei (sense of the faith), also called sensus fidelium (sense of the faithful) is, according to the Catechism of the Catholic Church, "the supernatural appreciation of faith on the part of the whole people, when, from the bishops to the last of the faithful, they manifest a universal consent in matters of faith and morals."[1] Quoting the document Lumen gentium of the Second Vatican Council, the Catechism adds: "By this appreciation of the faith, aroused and sustained by the Spirit of truth, the People of God, guided by the sacred teaching authority,... receives... the faith, once for all delivered to the saints. ...The People unfailingly adheres to this faith, penetrates it more deeply with right judgment, and applies it more fully in daily life."[2] The foundation of this can be found in Jesus' saying in Matthew 16:18 that "the gates of Hell will not prevail against it," where "it" refers to the "Church", that is, the Lord's people that carries forward the living tradition of essential beliefs throughout history, with the Bishops overseeing that this tradition does not pursue the way of error.[3]
The terms sensus fidei fidelium (sense of the faith on the part of the faithful) and sensus fidei fidelis (sense of the faith on the part of an individual member of the faithful) are also used.[4]