Exodus 31:2

(2) I have called by name.—It is a high honour to be called of God by name. He thus calls only those whom He appoints to some great work, as Moses (Exodus 3:4; Exodus 33:12), Samuel (1 Samuel 3:10), and Cyrus (Isaiah 45:3-4).

Bezaleel the son of Uri, the son of Hur.—Hur, the grandfather of Bezaleel, is generally supposed to be identical with the Hur who supported Moses’s hands (Exodus 17:12), and was left joint regent with Aaron when Moses went up into Mount Sinai (Exodus 24:14). There is, however, no evidence of this beyond the identity of the name.

Of the tribe of Judah.—Descended from Judah through Pharez, Hezron, and Caleb (1 Chronicles 2:5; 1 Chronicles 2:18-20).