"During the following night I seemed to be witnessing the performances of the afternoon. The scene was clearly laid out before me, and I was given a message for the manager and teachers of the school. CT 348.4"
"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."
Both passages describe God communicating through visions or dreams. EGW describes receiving a message in a dream, while Numbers 12:6 describes how God communicates with prophets. The connection is thematic and supports EGW's prophetic role.
"I was shown that in the amusements carried on at the school that afternoon the enemy gained a victory, and teachers were weighed in the balances and found wanting. I was greatly distressed and burdened to think that those standing in responsible positions should open the door and, as it were, invite the enemy in; for this they did in permitting the exhibitions that took place. As teachers, they should have stood firm against giving place to the enemy in any such line. By what they permitted they marred their record and grieved the Spirit of God. The students were encouraged in a course the effects of which were not easily effaced. There is no end to the path of vain amusements, and every step taken in it is a step in a path which Christ has not traveled. CT 348.5"
"TEKEL; Thou art weighed in the balances, and art found wanting."
EGW directly uses the phrase "weighed in the balances and found wanting" in a similar context of judgment and evaluation, making this an explicit allusion.