וַיֹּ֣אמֶר אֵלַי֮ אַל־תִּירָ֣א דָנִיֵּאל֒ כִּ֣י ׀ מִן־הַיּ֣וֹם הָרִאשׁ֗וֹן אֲשֶׁ֨ר נָתַ֧תָּ אֶֽת־לִבְּךָ֛ לְהָבִ֧ין וּלְהִתְעַנּ֛וֹת לִפְנֵ֥י אֱלֹהֶ֖יךָ נִשְׁמְע֣וּ דְבָרֶ֑יךָ וַאֲנִי־בָ֖אתִי בִּדְבָרֶֽיךָ׃
他對我說：「但以理啊，不要懼怕！因為從你專心求明白、在你的上帝面前刻苦己心的第一天起，你的話已蒙垂聽；我就是因你的話而來的。
Sforno
ויצא יצחק לשוח, he had detoured from his regular path to the field in order to pour out his heart to G’d in prayer. He did not want to be interrupted in his devotion by passing travelers whom he would have to greet. This was in spite of the fact that he had already prayed in Beer lachay Ro-i. His prayer had been answered already, in accordance with Daniel 10,12 מן היום אשר נתת את לבך להבין ולהענות...נשמעו דבריך, “for from the first day you set your mind to get understanding, practicing abstinence before your G’d, your prayer was heard and I have come because of your prayer.”