Contradiction with John 5:31
This verse states if Jesus bears witness of Himself, His witness is not true, contrasting Isaiah 8:2 where reliable witnesses are established.
John 5:31: If I bear witness of myself, my witness is not true.
Contradiction with 1 Corinthians 14:33
This verse mentions that God is not the author of confusion, whereas Isaiah 8:2 implies confusion needing prophetic confirmation.
1 Corinthians 14:33: For God is not [the author] of confusion, but of peace, as in all churches of the saints. [confusion: Gr. tumult, or, unquietness]
Contradiction with Galatians 1:8
This verse warns against preaching a gospel different from what is already received, contrasting Isaiah 8:2 where additional testimony is sought.
Galatians 1:8: But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
Contradiction with Deuteronomy 19:15
This verse states a matter is established by two or three witnesses, but Isaiah 8:2 emphasizes inviting specific witnesses without mention of a minimum number.
Deuteronomy 19:15: One witness shall not rise up against a man for any iniquity, or for any sin, in any sin that he sinneth: at the mouth of two witnesses, or at the mouth of three witnesses, shall the matter be established.
Contradiction with Hebrews 6:13
This verse explains God swearing by Himself, not needing witnesses, unlike Isaiah 8:2 which involves human testimony.
Hebrews 6:13: For when God made promise to Abraham, because he could swear by no greater, he sware by himself,