Then shalt thou understand the fear of the Lord. Then ( אָן), introducing the first apodosis, and answering to the conditional "if" of Proverbs 2:1, Proverbs 2:3, Proverbs 2:4. The earnest endeavour after Wisdom meets with its reward, and those that seek shall find (cf.
Matthew 7:7): and thus an inducement is held forth to listen to the admonition of the teacher. Understand implies the power of discernment, but Zockler gives it the further moaning of taking to one's self as a spiritual possession, just as "find" meaning primarily "to arrive at" conveys the idea of getting possession of (Mercerus).
The fear of the Lord ( יְרְאַת יְחָוֹה, yir'ath yehovah); "the fear of Jehovah," as in Proverbs 1:7. As it is the beginning, so it is the highest form of knowledge and the greatest good. Elsewhere it is represented as a fountain of life (Proverbs 15:27).
All true wisdom is summed up in "the fear of the Lord." It here means the reverence due to him, and so comprises the whole range of the religious affections and feelings, which respond to various attributes of the Divine character as they are revealed, and which find their expression in holy worship.
The knowledge of God ( דַעַת אֱלֹהִים, daath Elohim); literally, the knowledge of Elohim. Not merely cognition, but knowledge in its wider sense. The two ideas of "the fear of the Lord" and "the knowledge of God" act reciprocally on each other.
Just as without reverence of God there can be no knowledge of him in its true sense, so the knowledge of God will increase and deepen the feeling of reverence. But it is noticeable that the teacher here, as in Proverbs 9:10, where, however, it is "the knowledge of the holy" ( דַעַת קְדשִׁים, daath k'doshim), gives the chief place to reverence, and thus indicates that it is the basis of knowledge, which is its fruit and result.
The relation here suggested is analogous to that which subsists between faith and knowledge, and recalls the celebrated dictum of Anselm: "Neque enim quaero intelligere ut credam; sed credo, ut intelligam."
Elohim, here interchanged with Jehovah, is not of frequent occurrence in the Proverbs, as it is only found therein five times, while the predominating word which is used to designate the Deity is Jehovah.
But it is difficult to draw any distinction between them here. Jehovah may refer more especially to the Personality of the Divine nature, while Elohim may refer to Christ's glory (Plumptre). Bishop Wordsworth thinks that a distinction is made between the knowledge of Elohim and the knowledge of man which is of little worth.