John Calvin on Solo Christo - salvation though Christ alone

John Calvin

When we see that the whole sum of our salvation and every single part of it, are comprehended in Christ, we must beware of deriving the minutest portion of it from any other quarter. If we seek salvation, we are taught by the very name of Jesus that he possesses it. If we seek any other gifts of the Spirit, we shall find them in his unction; strength in his government; purity in his conception; indulgence in his nativity, in which he was made like us in all respects, in order that he might learn to sympathise with us. If we seek redemption, we shall find it in his passion; acquittal in his condemnation; remission of the curse in his cross; satisfaction in his sacrifice; purification in his blood; reconciliation in his descent into hell; mortification of the flesh in his sepulchre; newness of life in his resurrection; immortality also in his resurrection; the inheritance of a celestial kingdom in his entrance into heaven; protection , security, and the abundant supply of all blessings, in his kingdom; secure anticipation of judgement in the power of judging committed to him. In fine, since in him all kinds of blessings are treasured up, let us draw a full supply from him, and none from any other quarter.

The Institutes of the Christian Religion Book II Chapter 16:19.