I don’t believe God’s purpose in specifying a remnant is to limit the number of people who finally enter the gates of his kingdom. (Neither should we.) Other places in Scripture claim that number will be as many as the sand in the sea and the stars in the sky. Rather, God seeks to emphasize that only those who believe, repent, and faithfully (continuously until the end) trust in and follow God as Lord, Savior, and King will be saved. Because God makes a promise to save Israel does not mean that he will save the arrogant, the hard of heart, or those unrepentantly disobedient to his will. That has never been God’s purpose. By means of the cross of his holy Servant, Jesus Christ, God gives everyone–Israelite and Gentile alike–opportunity to repent, be saved, and find their rest in him. …
God Speaks: Isaiah Devotional 2.11
The Old Testament does not record the fulfillment of this prophecy of Isaiah (unless one counts the strictly local life and death of Cyrus the Persian). And God would not be God if this prophecy of Isaiah were not fulfilled. Thank God for the New Testament! Thank God for these “new things” (Isaiah 42:9) whose fulfillment the New Testament records. God always intended the Old and New Testaments to be a unified whole, the former prophesying in detail and the latter recording fulfillment of the former. …
Messiah in the Wings: Isaiah Devotional Journal 27
Reading Isaiah this closely, I see that God’s Word is consistent in all its parts. Isaiah in Chapter 8 speaks the same truth he began speaking in Chapter 1. All his predictions find their prophetic fulfillment in the New Testament and in 70 A.D., the year that Rome destroyed Jerusalem and the temple. Jesus and Paul follow Isaiah’s teachings closely. …