Gedullah denotes greatness, magnificence, and majestic splendor. It appears in praise of God's incomparable greatness (1 Chronicles 29:11; Psalm 150:2) and in descriptions of Mordecai's greatness after his promotion (Esther 10:2). It comes from the root gadal (to be great, H1431).
Ascribing gedullah to God is a central act of biblical worship. David's great doxology in 1 Chronicles 29:11 — 'Yours, O Lord, is the greatness and the power and the glory and the majesty and the splendor' — is among the most comprehensive celebrations of divine greatness in Scripture. Gedullah reminds us that all human greatness is derivative and temporary; God alone possesses inherent, eternal greatness. Meditating on God's greatness produces the awe, humility, and joy that characterize authentic worship.