This is a parallel-text scholarly edition of Proverbs 21 (Hebrew Bible / Old Testament), presenting the chapter simultaneously in four versions: the King James Version with embedded Strong's concordance numbers, the Greek Septuagint, the Hebrew Masoretic Text (Tanakh), and the Latin Vulgate. The chapter belongs to the biblical wisdom tradition and consists of 31 stand-alone aphorisms rather than a sustained argument. Its central themes are the sovereignty of God over human affairs (the king's heart is in God's hand like water in irrigation channels), the contrast between the righteous and the wicked, and practical ethics: justice is more pleasing to God than sacrifice, diligence beats haste, and guarding one's speech protects one's soul. A notable recurrent motif is the subordination of all human wisdom, counsel, and military preparation to divine will, culminating in the closing verse that a horse may be readied for battle, but victory belongs to the Lord. The four-column format is distinctively useful for text-critical and translation-comparative study, allowing readers to observe where the Septuagint diverges from the Hebrew (e.g., verse 5 is absent from the Greek column, and verse 16 shifts "congregation of the dead" to "assembly of giants"). This edition would primarily interest biblical scholars, translators, or students studying the transmission and variation of the Old Testament text across ancient textual traditions.