Contradiction with Deuteronomy 7:9
This verse emphasizes God's faithfulness in keeping His covenant, while Isaiah 48:19 implies consequences for disobedience.
Deuteronomy 7:9: Know therefore that the LORD thy God, he [is] God, the faithful God, which keepeth covenant and mercy with them that love him and keep his commandments to a thousand generations;
Contradiction with Galatians 3:16
This verse speaks of the singular "seed" referring to Christ, contrasting with the numerous descendants mentioned in Isaiah 48:19.
Galatians 3:16: Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.
Contradiction with Genesis 22:17
God's promise of countless descendants to Abraham is fulfilled, which presents a contrast to the unfulfilled promise implied in Isaiah 48:19.
Genesis 22:17: That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which [is] upon the sea shore; and thy seed shall possess the gate of his enemies; [shore: Heb. lip]
Contradiction with Romans 9:27
Contains the idea that only a remnant of Israel will be saved, while Isaiah 48:19 suggests enduring prosperity and countless descendants.
Romans 9:27: Esaias also crieth concerning Israel, Though the number of the children of Israel be as the sand of the sea, a remnant shall be saved:
Contradiction with Exodus 32:10
God’s willingness to destroy the Israelites contradicts the promise of innumerable descendants in Isaiah 48:19.
Exodus 32:10: Now therefore let me alone, that my wrath may wax hot against them, and that I may consume them: and I will make of thee a great nation.