Contradiction with Jeremiah 7:13
While Hebrews 3:15 emphasizes the importance of listening and responding to God's voice today, Jeremiah 7:13 depicts the people's persistent disregard for God's call despite numerous opportunities, suggesting the inevitability of ignored warnings.
Jeremiah 7:13: And now, because ye have done all these works, saith the LORD, and I spake unto you, rising up early and speaking, but ye heard not; and I called you, but ye answered not;
Contradiction with Proverbs 1:24-26
Hebrews 3:15 advises not to harden hearts, whereas Proverbs 1:24-26 indicates that refusal to listen leads to God not answering in times of trouble.
Proverbs 1:24-26: Because I have called, and ye refused; I have stretched out my hand, and no man regarded;
Contradiction with 2 Corinthians 6:2
Hebrews 3:15 mentions the urgency of heeding God's voice "today," yet 2 Corinthians 6:2 underscores the same urgency with "now," highlighting variation in immediacy.
2 Corinthians 6:2: (For he saith, I have heard thee in a time accepted, and in the day of salvation have I succoured thee: behold, now [is] the accepted time; behold, now [is] the day of salvation.)
Contradiction with Psalm 95:8
Both refer to hardening of hearts, yet Psalm 95:8 refers to a specific historical incident, while Hebrews 3:15 uses it as a generalized admonition.
Psalm 95:8: Harden not your heart, as in the provocation, [and] as [in] the day of temptation in the wilderness: [provocation: Heb. contention]
Contradiction with Luke 19:42
Hebrews 3:15 warns against ignoring the message today to prevent future loss, but Luke 19:42 shows Christ lamenting over those who had already lost their opportunity.
Luke 19:42: Saying, If thou hadst known, even thou, at least in this thy day, the things [which belong] unto thy peace! but now they are hid from thine eyes.