God promises Moses: I am with you (or: I will be with you). It is not by the power or will of Moses that Israel will become free, it is only through the faithfulness and the strength of the Lord. These words are found throughout the Bible, often with the command: do not be afraid (e.g., when Joshua, the successor of Moses, is called, Joshua 1:9, cf. Deuteronomy 31:6).
12 Dieu dit: Je serai avec toi; et ceci sera pour toi le signe que c'est moi qui t'envoie: quand tu auras fait sortir d'Egypte le peuple, vous servirez Dieu sur cette montagne.