Faith in Christ is not an exercise of the understanding merely; it is an affection of the heart. "With the heart man believeth." To those who believe… - Gardiner Spring

The essential difference between that knowledge which is, and that which is not conclusive evidence of Christian character, lies in this: the object of the one is the agreement of the several parts of a theological proposition; the object of the other is moral beauty, the intrinsic loveliness of God and Divine things. The sinner sees and hates; the saint sees and loves.

Faith from its essential nature implies the fallen state of man, while it recognizes the principles of the covenant of grace. It is itself the condition of that covenant. It is a grace which is alike distinguished from the love of angels and the faith of devils. It is peculiar to the returning sinner. None but a lost sinner needs it; none but a humbled sinner relishes it.

The same bond which unites believers to Christ binds them to each other. The love which is exercised towards the Head extends to the members. The union itself necessarily involves a union of affection. Those who love Christ love those who are like Him and those who are beloved by Him.