The Gospel is the word of Life and of Truth. It is the Power of GOD for the salvation of all Believers: The Key of the knowledge of GOD, which opens to the Faithful the door of the Kingdom of Heaven, unbinding them from their sins; and shuts it against the Unbelieving, binding them in their sins. Blessed are those who hear it and keep it, for thereby they show that they are the Children of GOD. Miserable are those who will not hear nor follow it, for they are the Children of the Devil. O Christians! hear this and learn; for assuredly the Ignorant will perish with his ignorance; and the Blind, following another Blind, will fall with him into the ditch. There is only One Way to life and salvation; it is the Faith and Assurance of the Promises of GOD, which can be had by the Gospel alone; by the hearing and understanding which, lively Faith is freely given, with certain Hope and perfect Peace with GOD, and ardent Love toward one’s neighbour. Where then is your Hope, if you despise and disdain to Hear, to See, to Read, and to Hold fast this Holy Gospel?
John Calvin, Christ the End of the Law