Lastly, Here is a practical inference drawn from all this (v. 5): O house of Jacob! come you, and let us walk in the light of the Lord. By the house of Jacob is meant either, 1. Israel according to the flesh. Let them be provoked by this to a holy emulation, Rom. xi. 14. "Seeing the Gentiles are thus ready and resolved for God, thus forward to go up to the house of the Lord, let us stir up ourselves to go too. Let it never be said that the sinners of the Gentiles were better friends to the holy mountain than the house of Jacob." Thus the zeal of some should provoke many. Or, 2. Spiritual Israel, all that are brought to the God of Jacob. Shall there be such great knowledge in gospel times (v. 3) and such great peace (v. 4), and shall we share in these privileges? Come then, and let us live accordingly. What ever others do, come, O come! let us walk in the light of the Lord. (1.) Let us walk circumspectly in the light of this knowledge. Will God teach us his ways? Will he show us his glory in the face of Christ? Let us then walk as children of the light and of the day, Eph. v. 8; 1 Thess. v. 8; Rom. xiii. 12. (2.) Let us walk comfortably in the light of this peace. Shall there be no more war? Let us then go on our way rejoicing, and let this joy terminate in God, and be our strength, Neh. viii. 10. Thus shall we walk in the beams of the Sun of righteousness.