וַיַּ֨רְא יִשְׂרָאֵ֜ל אֶת־הַיָּ֣ד הַגְּדֹלָ֗ה אֲשֶׁ֨ר עָשָׂ֤ה יְהוָה֙ בְּמִצְרַ֔יִם וַיִּֽירְא֥וּ הָעָ֖ם אֶת־יְהוָ֑ה וַיַּֽאֲמִ֙ינוּ֙ בַּֽיהוָ֔ה וּבְמֹשֶׁ֖ה עַבְדּֽוֹ׃ (פ)
이스라엘이 여호와께서 애굽 사람들에게 베푸신 큰 일을 보았으므로 백성이 여호와를 경외하며 여호와와 그 종 모세를 믿었더라
Derashot HaRan
But there is a question here, for after the splitting of the Red Sea we find it written (Ibid 14:31): "And they believed in the L-rd and in Moses, His servant," the implication being that before this their belief was not perfect.