Contradiction with Matthew 6:1
This verse advises believers to not perform deeds to be seen by others, contrasting with the encouragement to speak boldly because of others' confidence in Philippians 1:14.
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 Proverbs 17:28
This suggests that remaining silent can be wise, which contradicts the encouragement in Philippians 1:14 to speak boldly and without fear.
Proverbs 17:28: Even a fool, when he holdeth his peace, is counted wise: [and] he that shutteth his lips [is esteemed] a man of understanding.
Contradiction with James 1:19
Advises being slow to speak, which may contrast with the idea of speaking more boldly in Philippians 1:14.
James 1:19: Wherefore, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath:
Contradiction with 1 Samuel 16:7
This verse emphasizes judging by the heart and not outward actions, while Philippians 1:14 encourages outward boldness in speech.
1 Samuel 16:7: But the LORD said unto Samuel, Look not on his countenance, or on the height of his stature; because I have refused him: for [the LORD seeth] not as man seeth; for man looketh on the outward appearance, but the LORD looketh on the heart. [outward...: Heb. eyes]