שָׁלֹ֥שׁ פְּעָמִ֖ים בַּשָּׁנָ֑ה יֵרָאֶה֙ כָּל־זְכ֣וּרְךָ֔ אֶת־פְּנֵ֛י הָֽאָדֹ֥ן ׀ יְהוָ֖ה אֱלֹהֵ֥י יִשְׂרָאֵֽל׃
Trzy razy do roku ukaże się każdy mężczyzna twój przed obliczem Pana, Wiekuistego, Boga Israela.
Rashi
כל זכורך means all the males among you (cf. Rashi on Exodus 23:17 and the note thereon). — Many precepts of the Torah are stated and then repeated, aye, some of them three times and even four (this section, for instance, is, with a few alterations, identical with the contents of chapter Exodus 23:12—19) in order to declare him who infringes them guilty and to punish him for each of the number of prohibitions which are connected with them and for each of the number of positive commands which are connected with them.
Chizkuni
שלש פעמים, “three times;” the Torah repeats this again because of what follows in verse 24, i.e. that no one will steal your land while you make a pilgrimage to the Temple to thank the Lord for His bounty.
Sforno
את פני האדון, who arranges your affairs in a natural manner. The word אדון occurs in this sense in Genesis 45,8 ולאדון לכל ביתו, “and to be in charge of his whole household.”