2:20 That - This depends upon ver.11, and is mentioned as another happy fruit of wisdom.

Proverbs 2:20 Parallel Commentaries

The Knowledge of God
'The Lord is a God of knowledge, and by him actions are weighed.' I Sam 2:2. Glorious things are spoken of God; he transcends our thoughts, and the praises of angels. God's glory lies chiefly in his attributes, which are the several beams by which the divine nature shines forth. Among other of his orient excellencies, this is not the least, The Lord is a God of knowledge; or as the Hebrew word is, A God of knowledges.' Through the bright mirror of his own essence, he has a full idea and cognisance …
Thomas Watson—A Body of Divinity

"But Seek Ye First the Kingdom of God and his Righteousness," &C.
Matt. vi. 33.--"But seek ye first the kingdom of God and his righteousness," &c. This is a part of Christ's long sermon. He is dissuading his disciples and the people from carnal carefulness and worldly mindedness. The sermon holds out the Christian's diverse aspects towards spiritual and external things. What is the Christian's disposition in regard to the world, how should he look upon food, raiment, and all things necessary in this life? "Be careful for nothing." "Take no thought for your life, …
Hugh Binning—The Works of the Rev. Hugh Binning

Proverbs
Many specimens of the so-called Wisdom Literature are preserved for us in the book of Proverbs, for its contents are by no means confined to what we call proverbs. The first nine chapters constitute a continuous discourse, almost in the manner of a sermon; and of the last two chapters, ch. xxx. is largely made up of enigmas, and xxxi. is in part a description of the good housewife. All, however, are rightly subsumed under the idea of wisdom, which to the Hebrew had always moral relations. The Hebrew …
John Edgar McFadyen—Introduction to the Old Testament