וַיֵּצֵ֥א יִצְחָ֛ק לָשׂ֥וּחַ בַּשָּׂדֶ֖ה לִפְנ֣וֹת עָ֑רֶב וַיִּשָּׂ֤א עֵינָיו֙ וַיַּ֔רְא וְהִנֵּ֥ה גְמַלִּ֖ים בָּאִֽים׃
이삭이 저물 때에 들에 나가 묵상하다가 눈을 들어 보매 약대들이 오더라
Rashi
לשוח TO MEDITATE — this means “to pray” (Genesis Rabbah 60:14), as we find (Psalms 102:1) “[A prayer of the afflicted …] when he poureth forth his plaint.
Chizkuni
ויצא יצחק, “Yitzchok went forth;” (he left his house) seeing that the Torah does not specify from where “Yitzchok went out,” our sages have understood it to mean that he left Gan Eden, where he had spent the last three years after undergoing the akeydah on Mount Moriah. (Compare our comments page 164 on Genesis 22,19)
Rashbam
ויצא יצחק לשוח בשדה, the word לשוח is basically the same as שיח השדה, “the plants that grow in the field,” (Genesis 2,5). Yitzchok went out to plant useful vegetation, trees, etc., and to check the work of his employees. While he was thus occupied he happened to espy גמלים באים, camels approaching. He came closer to see if per chance they were the camels belonging to his father which the servant Eliezer had been leading.