Contradiction with Psalm 118:17
Isaiah 38:10 suggests the end of life, while Psalm 118:17 states that one will not die but live and declare the works of the Lord.
Psalm 118:17: I shall not die, but live, and declare the works of the LORD.
Contradiction with John 11:25
Isaiah 38:10 speaks of going to the gates of the grave, whereas John 11:25 declares that belief in Jesus means one shall live even if they die.
John 11:25: Jesus said unto her, I am the resurrection, and the life: he that believeth in me, though he were dead, yet shall he live:
Contradiction with 2 Corinthians 5:8
Isaiah 38:10 expresses a reluctance to enter the grave, while 2 Corinthians 5:8 shows a preference for being absent from the body to be present with the Lord.
2 Corinthians 5:8: We are confident, [I say], and willing rather to be absent from the body, and to be present with the Lord.
Contradiction with Philippians 1:21-23
Isaiah 38:10 laments entering the gates of the grave, in contrast, Philippians 1:21-23 reflects on death as a gain and being with Christ as better.
Philippians 1:21-23: For to me to live [is] Christ, and to die [is] gain.