Now Samuel did not yet know the Lord: The word of the Lord had not yet been revealed to him.
NMVNow Sh’mu’el [His name is El] did not yet know the LORD-Yehōvah (Messiah Pre-Incarnate), neither was the word of the LORD-Yehōvah (Messiah Pre-Incarnate) yet revealed unto him.
OJBNow Shmuel did not yet know Hashem; the Devar Hashem was not yet revealed unto him.
T4TAt that time Samuel did not yet know that Yahweh could speak to him, because Yahweh had not previously revealed anything to him.