It is important to obtain a right understanding of the parabolical representation itself, since it supplies the basis of the spiritual instruction
Fourth, it is important to obtain a right understanding of the parabolical representation itself, since it supplies the basis of the spiritual instruction. Unless we understand the natural allusion, we cannot give a satisfactory exposition of the language in which it is set forth. Care has also to be taken that we do not extend the representation beyond the bounds in which it was intended to move. That representation becomes obvious when we concentrate upon the leading idea of the parable and allow its details to make that more distinct. A parable must not be broken into parts but looked at as a whole, though let it not be forgotten that every detail contributes to its central truth, there being no mere verbiage. Usually the context makes clear what is its purpose and purport. Thus the parable of the king taking account of his servants (Matthew 18:23) was in reply to Peter’s inquiry in verse 21; that of the rich fool in Luke 12 was occasioned by a spirit of covetousness on the part of one who desired to obtain a part of his brother’s inheritance. Those in Luke 15 grew out of what is related in its opening verses. Parables bear upon the more fundamental aspects of duty and deportment rather than on the minute details of either.
Arthur W. Pink-Interpretation of the Scriptures