The great leading doctrines of Christianity are the truths which the Holy Spirit employs when he regenerates souls. If young converts are really ignorant on such points, not having experimentally learnt them, they are only converts to error and deception. It is not to be expected, perhaps not to be desired, that young Christians should understand doctrines scholastically, or theologically, or metaphysically- but if they are Christians indeed, it is probable that their mind will be substantially right on such doctrines as human sinfulness, divine sovereignty, atonement, justification by faith in Jesus Christ, regeneration by the special power of the Holy Spirit, and the constant need of divine aid. God's children all have the same image, and same superscription-the family mark. Heaven has but one mould. -Beholding as in a glass the glory of the Lord, we are changed into the same image.-