Hebrew da'at, knowledge, from the root yada, to know. In Hebrew thought, da'at is not bare informational acquaintance but relational-covenantal knowledge — the kind of knowing that engages the whole person and that is consummated in obedient relationship. To know the LORD in OT idiom is to be in covenant fellowship with Him, marked by reverence, obedience, and intimate dependence (Jeremiah 9:24, let him that glorieth glory in this, that he understandeth and knoweth me, that I am the LORD which exercise lovingkindness, judgment, and righteousness, in the earth; Hosea 6:6, I desired mercy, and not sacrifice; and the knowledge of God more than burnt offerings). The lack of da'at of God is the great prophetic indictment (Hosea 4:1, 6, there is no truth, nor mercy, nor knowledge of God in the land... My people are destroyed for lack of knowledge). Proverbs treats da'at as one of the great gifts to be pursued alongside wisdom (chokmah) and understanding (binah): The fear of the LORD is the beginning of knowledge: but fools despise wisdom and instruction (Proverbs 1:7). The patriarchal-Reformed reader recovers da'at as relational-covenantal knowledge of God that integrates head and heart, doctrine and life, fear of the LORD and intimate fellowship with Him — the opposite of both bare informational doctrine-without-life and emotional experience-without-substance.