Genesis 42:23

And they knew not that Joseph understood them; for he spake unto them by an interpreter.

Cross-reference

Genesis 42:24 Historical context

Genesis 42:24 shows Joseph weeping after hearing their conversation, revealing his emotional reaction to the brothers' ignorance in 42:23.

Genesis 45:12 Historical context

In Genesis 45:12, Joseph reveals himself, confirming that he truly understands Hebrew—resolving the earlier language barrier.