Contradiction with Matthew 6:1
This verse emphasizes not doing righteous acts to be seen by others, which contrasts with rejoicing in the Lord openly as mentioned in Philippians 3:1.
Matthew 6:1: Take heed that ye do not your alms before men, to be seen of them: otherwise ye have no reward of your Father which is in heaven. [alms: or, righteousness] [of your: or, with your]
Contradiction with Ecclesiastes 1:14
This verse speaks of all being vanity and meaningless, contradicting the rejoicing and purpose found in the Lord encouraged in Philippians 3:1.
Ecclesiastes 1:14: I have seen all the works that are done under the sun; and, behold, all [is] vanity and vexation of spirit.
Contradiction with Galatians 6:14
Here, boasting is in the cross of Christ alone, which can be seen as contrary to finding joy or boasting in anything else, including general rejoicing in the Lord.
Galatians 6:14: But God forbid that I should glory, save in the cross of our Lord Jesus Christ, by whom the world is crucified unto me, and I unto the world. [by whom: or, whereby]
Contradiction with James 4:9
This verse advises mourning and gloom, which contradicts the message of rejoicing found in Philippians 3:1.
James 4:9: Be afflicted, and mourn, and weep: let your laughter be turned to mourning, and [your] joy to heaviness.
Contradiction with 1 Corinthians 3:21
Advises against boasting in men, which could be seen as contrary to rejoicing openly in the Lord, depending on the interpretation of public expressions.
1 Corinthians 3:21: Therefore let no man glory in men. For all things are yours;