Christianity is both a doctrine and a life, and . . .

[T]he object of true faith is both a proposition and a person. . . .

Christianity, objectively considered, is the testimony of God concerning his son, it is the whole revelation of truth contained in the Scriptures, concerning the redemption of man through Jesus Christ our Lord.

Subjectively considered, it is the life of Christ in the soul, or, that form of spiritual life which has its origin in Christ, is determined by the revelation concerning his person and work, which is due to the indwelling of his Spirit.

—Charles Hodge, “What Is Christianity?” Biblical Repertory and Princeton Review 33, no. 1 (1860): 119.

A Christian is one

who recognizes Jesus as the Christ, the Son of the living God, as God manifested in the flesh, loving us and dying for our redemption;

and who is so affected by a sense of the love of this incarnate God as to be constrained to make

the will of Christ the rule of his obedience, and

the glory of Christ the great end for which he lives.

—Charles Hodge, An Exposition of the Second Epistle to the Corinthians (1863), 133.