Isaiah 40:28

Do you not know? Have you not heard? The Lord is an eternal God, the creator of the whole earth. ¹  He does not get tired or weary; there is no limit to his wisdom. ² 

Ge 21:33; De 33:27; 1Sa 2:10; Ps 138:8; Ps 139:6; Ps 147:5; Isa 45:22; Isa 55:8,9; Isa 57:15; Isa 59:1; Isa 66:9; Jer 4:22; Jer 10:10; Mr 8:17,18; Mr 9:19; Mr 16:14; Lu 24:25; Joh 5:17; Joh 14:9; Ac 13:47; Ro 11:33,34; Ro 16:26; 1Co 2:16; 1Co 6:3-5,9; 1Co 6:16,19; Php 1:6; 1Ti 1:17; Heb 9:14

¹ tn Heb “the ends of the earth,” but this is a merism, where the earth’s extremities stand for its entirety, i.e., the extremities and everything in between them.

² sn Exiled Israel’s complaint (v. 27) implies that God might be limited in some way. Perhaps he, like so many of the pagan gods, has died. Or perhaps his jurisdiction is limited to Judah and does not include Babylon. Maybe he is unable to devise an adequate plan to rescue his people, or is unable to execute it. But v. 28 affirms that he is not limited temporally or spatially nor is his power and wisdom restricted in any way. He can and will deliver his people, if they respond in hopeful faith (v. 31a).