Luke 15:26

And he called one of the servants
One of the ministers of the word, one of the disciples of Christ, as the Scribes and Pharisees sometimes did: choosing rather to speak to one of the disciples, than to Christ himself, when they were offended; see ( Mark 2:16 )

And asked what these things meant:
for self-righteous persons, as these Scribes and Pharisees were, are ignorant of the truths of the Gospel; they do not understand them, nor conceive what is meant by them they cannot take in the doctrine of God's everlasting love, that it should be so early; be towards some, and not others; that it should be independent of men's works, both in the rise and continuance of it; that it should be exercised towards sinners, and yet be no licentious doctrine: and as much at a loss are they about the doctrine of election: as that it should be eternal, personal, discriminating, irrespective of works, and yet give no liberty to sin: they know nothing of the covenant of grace, nor have any other notion but of a covenant of works; and if of any other, yet a conditional one, made with them upon their conversion; or rather, one of their own making, and which depends on their good behaviour: they are ignorant of salvation by Christ; of justification by his righteousness; of peace and pardon by his blood; of the doctrine of regeneration, and of living by faith on Christ; and of eternal life as God's free gift; and so likewise of spiritual joy, and mirth: they are strangers to themselves, their lost state and condition, and a deliverance out of it; to the kingdom of God, or an internal work of grace, the fruits of which are peace and joy in the Holy Ghost; and to the person, offices, and grace of Christ; to justification and atonement by him; to the promises of the Gospel, and to that itself which is the joyful sound; all which produce spiritual joy, delight, and pleasure in sensible souls: the rejoicing of such persons is only in themselves, and in their own works and duties; but as for true solid spiritual joy, they intermeddle not with it, nor know they what it means.