Adam Clarke's Bible Commentary Verse 4. The wife and her children shall be her master's] It was a law among the Hebrews, that if a Hebrew had children by a Canannitish woman, those children must be considered as Canaanitish only, and might be sold and bought, and serve for ever. The law here refers to such a case only.
Matthew Henry Commentary
Verses 1-11 - The laws in this chapter relate to the fifth and sixth commandments and though they differ from our times and customs, nor are they bindin on us, yet they explain the moral law, and the rules of natura justice. The servant, in the state of servitude, was an emblem of tha state of bondage to sin, Satan, and the law, which man is brought int by robbing God of his glory, by the transgression of his precepts Likewise in being made free, he was an emblem of that liberty wherewit Christ, the Son of God, makes free from bondage his people, who ar free indeed; and made so freely, without money and without price, or free grace.
Original Hebrew אם518 אדניו113 יתן5414 לו אשׁה802 וילדה3205 לו בנים1121 או176 בנות1323 האשׁה802 וילדיה3206 תהיה1961 לאדניה113 והוא1931 יצא3318 בגפו׃1610