Variantly: "before the eyes of all the people": We are hereby apprised that if they lacked (in unity of heart) even one, they could not receive (the Shechinah). R. Yossi says: Even if they numbered 22,000, they could receive it, it being written (Numbers 10:36) "And when it (the ark) rested, he (Moses) would say: 'Return, O L–rd (to) the (two) ten thousands (two) thousands of Israel.'"
It Required Totality, Every Single Member of Israel Present, Unified
Mekhilta Tractate Bachodesh 3:10