כָּל־מַלְכֵ֥י גוֹיִ֖ם כֻּלָּ֑ם שָׁכְב֥וּ בְכָב֖וֹד אִ֥ישׁ בְּבֵיתֽוֹ׃
열방의 왕들은 모두 각각 자기 집에서 영광 중에 자건마는
Radak
וישא לוט את עיניו, from the mountain where they were staying, as we know from 12,8. Seeing that this was a high point in the country, it afforded Lot an opportunity to survey much of the rest of the country all around him. As a result, he observed כי כלה משקה, that the Jordan valley was very well irrigated. When the Torah uses the word כלה after having already said כל when describing the valley, this is a way of emphasising the word כל still further. We find a similar construction in Isaiah 14,18 כל מלכי גוים כולם, “all the kings of the nations, all of them.”