Contradiction with John 3:36
1 Corinthians 16:23 wishes grace upon everyone, while John 3:36 states that those who do not believe in the Son will not see life and the wrath of God abides on them, implying a lack of grace for non-believers.
John 3:36: He that believeth on the Son hath everlasting life: and he that believeth not the Son shall not see life; but the wrath of God abideth on him.
Contradiction with Romans 2:8
1 Corinthians 16:23 extends grace to all, yet Romans 2:8 mentions indignation and wrath for those who are contentious and do not obey the truth, contrasting the universal grace implied.
Romans 2:8: But unto them that are contentious, and do not obey the truth, but obey unrighteousness, indignation and wrath,
Contradiction with Galatians 1:8
While 1 Corinthians 16:23 bestows grace, Galatians 1:8 curses anyone preaching a gospel other than what was received, contradicting the all-encompassing grace.
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 2 Thessalonians 1:8-9
1 Corinthians 16:23 conveys grace, whereas these verses speak of vengeance and punishment with everlasting destruction for those who do not know God, conflicting with the idea of grace for everyone.
2 Thessalonians 1:8-9: In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ: [taking: or, yielding]
Contradiction with Revelation 22:18-19
1 Corinthians 16:23 provides grace to all, while these verses warn of plagues and removal from the Book of Life for those who add to or take away from the prophecy, indicating conditions that negate grace.
Revelation 22:18-19: For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book: