Contradiction with Proverbs 25:2
It contrasts with John 16:19 where Jesus openly reveals the truth to his disciples, whereas Proverbs suggests that God conceals matters.
Proverbs 25:2: [It is] the glory of God to conceal a thing: but the honour of kings [is] to search out a matter.
Contradiction with Isaiah 55:8-9
Highlights the incomprehensibility of God's ways, whereas in John 16:19, Jesus addresses the disciples' confusion to clarify his departure.
Isaiah 55:8-9: For my thoughts [are] not your thoughts, neither [are] your ways my ways, saith the LORD.
Contradiction with Deuteronomy 29:29
Indicates that some things are hidden by God, contradicting John 16:19 where Jesus seeks to explain and make things clear to his disciples.
Deuteronomy 29:29: The secret [things belong] unto the LORD our God: but those [things which are] revealed [belong] unto us and to our children for ever, that [we] may do all the words of this law.