וְזָכַרְתָּ֗ כִּ֣י עֶ֤בֶד הָיִ֙יתָ֙ בְּאֶ֣רֶץ מִצְרַ֔יִם וַֽיִּפְדְּךָ֖ יְהוָ֣ה אֱלֹהֶ֑יךָ עַל־כֵּ֞ן אָנֹכִ֧י מְצַוְּךָ֛ אֶת־הַדָּבָ֥ר הַזֶּ֖ה הַיּֽוֹם׃
E lembrar-te-ás de que foste escravo na terra de Mitzrayim, e o Eterno teu Deus te resgatou; por isso eu hoje te ordeno este mandamento.
Rashi
וזכרת כי עבד היית AND THOU SHALT REMEMBER THAT THOU WAST A SERVANT [IN THE LAND OF EGYPT] — and I loaded thee with good things, and did so a second time — from the spoil of the land of Egypt and from the spoil at the Red Sea; so you, too, load him once, and do it again for him (Sifrei Devarim 120:1).
Sforno
וזכרת כי עבד היית, not only did He take you out of bondage, but He saw to it that you were generously endowed with gold, silver, garments, etc.