The Church, The Effect of the Gospel

For unless we want to say that in vain the Father sent the Son, in vain the Son suffered and rose again, and in vain the Holy Spirit was promised and sent, we must believe the effect of all these things, namely, that in Christ by the power of the Holy Spirit the Father builds for Himself a new people. He freely elected this people in the past, established a gracious covenant with them, and communicates to them Himself and all His benefits." - Caspar Olevianus, An Exposition of the Apostles' Creed