וַיְדַבֵּר֙ שַׂ֣ר הַמַּשְׁקִ֔ים אֶת־פַּרְעֹ֖ה לֵאמֹ֑ר אֶת־חֲטָאַ֕י אֲנִ֖י מַזְכִּ֥יר הַיּֽוֹם׃
Então o chefe dos copeiros falou com Par'oh, dizendo: Hoje me lembro dos meus pecados.
Akeidat Yitzchak
This problem is solved when the Torah instructs remembrances together with things which we had to learn. The Talmud (Berachot 20) says "everything which is subject to observance,becomes subject to remembrance." This means that every act such as Sabbath observance, triggers memory cells which reminds the one performing the commandment of the purpose of the Sabbath legislation and the process of creation by G-d. "Observe the month of spring, for during it you came out of Egypt" (Exodus 13,4) This means that the Passover observances will trigger memories related to the Exodus. Or, regarding the observance of Purim "these days will be remembered through their observance." (Esther 9,28) Remembering Amalek is especially underlined, since no specific act triggers the memory. This is why the commandment ends with the words "do not forget!" In the absence of a mitzvah act, the danger of forgetting is much greater. Reading the portion of the attack of Amalek substitutes for an act. In all the foregoing situations, the Torah provides the antidote to forgetting. In view of these memory aids provided, not remembering a commandment which mentions remembrance becomes culpable. People who fail to make notations of important events in their calendar can be faulted for not remembering them. This is why the chief of Pharaoh's cupbearers, of whom the Torah says that "he did not remember Joseph but forgot him," refers to this a a sin. (Genesis 41,9) One of the sins of the cupbearer referred to, was not remembering Joseph's request to be mentioned to Pharaoh as deserving release from prison. When David says in Psalms 119,45, "I swore I will keep Your words," he did so to remind himself of commandments he might otherwise have overlooked. The Talmud Baba Metzia 5, states that though a man's honesty may be suspect, his oath is believed. David swore to himself that if he were to be remiss, he would bear the additional burden of a false oath, a severe enough sin to jog his memory not to forget to observe the mitzvot in question. When Solomon says in Proverbs 10,5, "he who accumulates in summer is a wise person," he would apply this same kind of reasoning to him who reinforces his memory by vowing not to forget to keep the mitzvah. He who feels bothered by the fact that a certain mitzvah is incumbent upon him, has already reason to rejoice over taking the oath, just as a person taking a laxative realises joyfully that the medicine is about to help as soon as his stomach starts convulsing.