Smith's Bible Dictionary

Tabeal (God is good). The son of Tabeal was apparently an Ephraimite in the army of Pekah the son of Remaliah, or a Syrian in the army of Rezin, when they went up to besiege Jerusalem in the reign of Ahaz. (Isaiah 7:6) The Aramaic form of the name favors the latter supposition. (B.C. before 738.)