Sforno on Exodus 16:9/ספורנו על שמות ט״ז:ט׳

1אמור אל כל עדת, seeing that Moses knew that their prayer had been accepted, as in the case of Rabbi Chanina who claimed that while praying for the sick he could feel if G’d responded positively.(Berachot 34).

2'קרבו לפני ה, “come close to the proximity of Hashem,” Moses referred to the pillar of cloud which traveled in front of the Israelites and represented the presence of G’d.