וְנֶאֶסְפוּ־שָׁ֣מָּה כָל־הָעֲדָרִ֗ים וְגָלֲל֤וּ אֶת־הָאֶ֙בֶן֙ מֵעַל֙ פִּ֣י הַבְּאֵ֔ר וְהִשְׁק֖וּ אֶת־הַצֹּ֑אן וְהֵשִׁ֧יבוּ אֶת־הָאֶ֛בֶן עַל־פִּ֥י הַבְּאֵ֖ר לִמְקֹמָֽהּ׃
모든 떼가 모이면 그들이 우물 아구에서 돌을 옮기고 양에게 물을 먹이고는 여전히 우물 아구 그 자리에 돌을 덮더라
Rashi on Genesis
ונאספו [AND THITHER WERE ALL THE DROVES] GATHERED — they regularly gathered there because the stone was a heavy one
Radak on Genesis
ונאספו שמה...וגללו, the subject of the verse are the various shepherds who have as yet not been mentioned.