Anub (עָנוּב) appears only in 1 Chronicles 4:8 as a name in the genealogy of Judah. The name derives from the root enab, meaning 'grape' — suggesting fruitfulness and abundance. Like many genealogical names, it encodes a promise: Judah's descendants, like clusters of grapes, would be a sign of the vine's fruitfulness. The tribe of Judah was associated with the vine from Jacob's blessing in Genesis 49.
Though appearing only once, Anub's name connects to the great vine imagery of Scripture. Genesis 49:11 prophesies of Judah tying his donkey to the vine and washing his garments in wine. Isaiah's Song of the Vineyard (5:1–7) describes Israel as God's vineyard. Jesus declares 'I am the true vine' (John 15:1) — the true cluster from Judah's line, the one who produces the fruit of eternal life.
The cluster of grapes carried on a pole from Canaan (Numbers 13:23) required two men to carry it — it was so heavy with fruit. This abundance was the evidence that the promised land was real. Christ, the true vine, bears fruit that cannot be measured — and grafts His people in to share that fruitfulness. Every believer in the vine is part of the cluster of Anub, the fruitful descendant of Judah.