Evangelical scholarship rightly argues that the book of Proverbs coheres with the theology of the Old Testament. However, less attention has been given to the possibility that the authors of Proverbs utilized earlier OT Scripture, and in what ways they may have done so. Prov 3:11–12 provides one example of the book’s familiarity with prior revelation. In this paper, I will argue that Prov 3:11–12 alludes to the discipline clause of the Davidic Covenant (2 Sam 7:14). To accomplish this, first, I will show that Solomon, the author of Proverbs 1–9, was familiar with the Davidic Covenant (cf. 1 Kgs 2:1–4; 3:4–14; 9:1–9). Second, I will demonstrate that the vocabulary shared by Prov 3:11–12 and 2 Sam 7:14 is distinctive and unique, Third, I will apply this allusive reading of Prov 3:11–12 to its quotation in Heb 12:5–6, suggesting what bearing the 2 Sam 7:14 allusion might have on how the author of Hebrews used Proverbs. This paper will participate in the body of research on inner-biblical interpretation in Proverbs, while also lending support to the thesis that Proverbs is integral to OT theology.