Proverbs 9:5

Come, eat of my bread - Not only receive my instructions, but act according to my directions.

Drink of the wine - I have mingled - Enter into my counsels; be not contented with superficial knowledge on any subject, where any thing deeper may be attained. Go by the streams to the fountain head. Look into the principles on which they were formed; investigate their nature, examine their properties, acquaint thyself with their relations, connections, influences, and various uses. See the skill power, and goodness of God in their creation. And when thou hast learned all within thy reach, know that thou knowest but little of the manifold wisdom of God. Let what thou hast learned humble thee, by showing thee how very little thou dost know. Thou hast drunk of the provided wine; but that wine was mingled with water, for God will hide pride from man. He dwells only on the surface of religious and philosophical learning, who does not perceive and feel that he is yet but a child in knowledge; that he see through a glass darkly; that he perceives men like trees walking; and that there are lengths, breadths, depths, and heights, in the works and ways of God, which it will require an eternity to fathom. Here below the pure wine is mingled with water: but this is God's work. Yet there is enough; do not therefore be contented with a little. To this subject the words of the poet may be well applied: -

A little learning is a dangerous thing; Drink deep,

or taste not the Pierian spring:

For scanty draughts intoxicate the brain,

But drinking largely sobers us again.

Pope