Rashi on Exodus 34:31/רש"י על שמות ל״ד:ל״א

1הנשאים בעדה THE PRINCES IN THE CONGREGATION — is the same as the more usual expression נשיאי העדה, the princes of the congregation.

2וידבר משה אלהם AND MOSES SPOKE TO THEM the message of the Almighty. This whole section (i. e. all the verbs in it) denotes frequentative action (thus וידבר means “Moses used to say”, ויקרא meant “He used to call”, נגשו means “they used to come near” etc).