Contradiction with Numbers 12:6
Indicates that God communicates through visions and dreams, which can be seen as specific methods rather than the varied manners mentioned in Hebrews 1:1.
Numbers 12:6: And he said, Hear now my words: If there be a prophet among you, [I] the LORD will make myself known unto him in a vision, [and] will speak unto him in a dream.
Contradiction with John 1:18
States that no one has seen God at any time, seemingly conflicting with the idea of God directly speaking to the prophets.
John 1:18: No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared [him].
Contradiction with Exodus 33:11
Describes God speaking to Moses face to face, which appears more direct than the diverse manners referred to in Hebrews 1:1.
Exodus 33:11: And the LORD spake unto Moses face to face, as a man speaketh unto his friend. And he turned again into the camp: but his servant Joshua, the son of Nun, a young man, departed not out of the tabernacle.
Contradiction with 1 Samuel 3:1
Mentions that the word of the Lord was rare in those days, which contrasts with the notion of God frequently speaking through prophets.
1 Samuel 3:1: And the child Samuel ministered unto the LORD before Eli. And the word of the LORD was precious in those days; [there was] no open vision.
Contradiction with Jeremiah 7:13
States that God spoke but people did not listen, suggesting an ineffective communication rather than the effective speaking to the prophets implied in Hebrews 1:1.
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;