Contradiction with Isaiah 55:11
This verse explains that God's word will not return void but accomplish what He pleases, which suggests that God's purposes cannot fail, seemingly contradictory to the idea of words "falling to the ground," implying possible failure.
Isaiah 55:11: So shall my word be that goeth forth out of my mouth: it shall not return unto me void, but it shall accomplish that which I please, and it shall prosper [in the thing] whereto I sent it.
Contradiction with Jonah 3:10
This verse depicts God relenting from sending calamity after Nineveh repents, suggesting a change in the divine plan, which contrasts with the idea of none of Samuel's words falling unfulfilled.
Jonah 3:10: And God saw their works, that they turned from their evil way; and God repented of the evil, that he had said that he would do unto them; and he did [it] not.
Contradiction with Numbers 23:19
States that God is not human to lie or change His mind, emphasizing steadfastness, hence contradicting implications elsewhere of divine reconsideration.
Numbers 23:19: God [is] not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do [it]? or hath he spoken, and shall he not make it good?
Contradiction with Jeremiah 18:7-10
This passage highlights God stating He might change His mind about what He intended to do, which contrasts with the certainty suggested in Samuel's words not falling to the ground.
Jeremiah 18:7-10: [At what] instant I shall speak concerning a nation, and concerning a kingdom, to pluck up, and to pull down, and to destroy [it];
Contradiction with 1 Kings 22:22-23
Describes a lying spirit sent by God in the mouth of prophets, contrasting with the reliability inferred in 1 Samuel 3:19's portrayal of divine words through Samuel.
1 Kings 22:22-23: And the LORD said unto him, Wherewith? And he said, I will go forth, and I will be a lying spirit in the mouth of all his prophets. And he said, Thou shalt persuade [him], and prevail also: go forth, and do so.