Contradiction with Matthew 15:24
Isaiah 55:5 speaks of a nation that did not know God being called, whereas Matthew 15:24 states Jesus' mission was only to the lost sheep of Israel, suggesting a more exclusive focus.
Matthew 15:24: But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
Contradiction with Deuteronomy 7:6
Isaiah 55:5 implies a calling of other nations, while Deuteronomy 7:6 emphasizes Israel as God's chosen people, implying exclusivity.
Deuteronomy 7:6: For thou [art] an holy people unto the LORD thy God: the LORD thy God hath chosen thee to be a special people unto himself, above all people that [are] upon the face of the earth.
Contradiction with Amos 3:2
Isaiah 55:5 suggests a broader outreach, whereas Amos 3:2 states that only Israel was known by God among all families of the earth, reinforcing exclusivity.
Amos 3:2: You only have I known of all the families of the earth: therefore I will punish you for all your iniquities. [punish: Heb. visit upon]
Contradiction with Acts 2:39
Isaiah 55:5 alludes to unspecified nations being called, while Acts 2:39 limits the promise to those afar off whom God shall call, which may not include all nations.
Acts 2:39: For the promise is unto you, and to your children, and to all that are afar off, [even] as many as the Lord our God shall call.