Translations
Samuel did not yet know Yahweh in this direct, personal way—the word of Yahweh had not yet been revealed to him. He served faithfully, but had never heard the divine voice.
Now Shmu'el did not yet know YHWH by experience, and the word of YHWH had not yet been uncovered to him.
Now Samuel did not yet know the LORD, neither was the word of the LORD yet revealed unto him.
Now Samuel did not yet know the LORD, because the word of the LORD had not yet been revealed to him.

