Ezekiel 16:62 Midrash

וַהֲקִימוֹתִ֥י אֲנִ֛י אֶת־בְּרִיתִ֖י אִתָּ֑ךְ וְיָדַ֖עַתְּ כִּֽי־אֲנִ֥י יְהוָֽה׃

And I will establish My covenant with thee, and thou shalt know that I am the LORD;