וַיֹּ֙אמֶר֙ כִּֽי־אֶֽהְיֶ֣ה עִמָּ֔ךְ וְזֶה־לְּךָ֣ הָא֔וֹת כִּ֥י אָנֹכִ֖י שְׁלַחְתִּ֑יךָ בְּהוֹצִֽיאֲךָ֤ אֶת־הָעָם֙ מִמִּצְרַ֔יִם תַּֽעַבְדוּן֙ אֶת־הָ֣אֱלֹהִ֔ים עַ֖ל הָהָ֥ר הַזֶּֽה׃
Respondeu-lhe Deus: Certamente eu serei contigo; e isto te será por sinal de que eu te enviei: Quando houveres tirado do Egito o meu povo, servireis a Deus neste monte.
Targum Jonathan on Exodus
But He said, Therefore My Word shall be for thy help; and this shall be the sign to thee that I have sent thee: when thou hast, brought the people forth from Mizraim, ye shall worship before the Lord, because ye shall have received the Law upon this mountain.