A reply of St. Joan of Arc to her judges sums up the faith of the holy doctors and the good sense of the believer: "About Jesus Christ and the Church, I simply know they're just one thing, and we shouldn't complicate the matter." 233
Catechism number 802
Christ Jesus "gave himself for us to redeem us from all iniquity and to purify for himself a people of his own" (Titus 2:14).