a proper reverence for God's creation.
Verse 29
“Do not prostitute thy daughter, to cause her to be a whore, lest the land fall to whoredom, and the land become full of vice” (zimmah: see Lev 18:17). The reference is not to spiritual whoredom or idolatry (Exo 34:16), but to fleshly whoredom, the word zimmah being only used in this connection. If a father caused his daughter to become a prostitute, immorality would soon become predominant, and the land (the population of the land) fall away to whoredom.
Verse 30
The exhortation now returns to the chief point, the observance of the Lord's Sabbaths and reverence for His sanctuary, which embrace the true method of divine worship as laid down in the ritual commandments. When the Lord's day is kept holy, and a holy reverence for the Lord's sanctuary lives in the heart, not only are many sins avoided, but social and domestic life is pervaded by the fear of God and characterized by chasteness and propriety.
Verse 31
True fear of God, however, awakens confidence in the Lord and His guidance, and excludes all superstitious and idolatrous ways and methods of discovering the future. This thought prepares the way for the warning against turning to familiar spirits, or seeking after wizards. אוב denotes a departed spirit, who was called up to make disclosures with regard to the future, hence a familiar spirit, spiritum malum qui certis artibus eliciebatur ut evocaret mortuorum manes, qui praedicarent quae ab eis petebantur (Cler.). This is the meaning in Isa 29:4, as well as here and in Lev 20:6, as is evident from Lev 20:27, “a man or woman in whom is an ob,” and from 1Sa 28:7-8, baalath ob, “a woman with such a spirit.” The name was then applied to the necromantist himself, by whom the departed were called up (1Sa 28:3; 2Ki 23:24). The word is connected with ob, a skin. ידּעני, the knowing, so to speak, “clever man” (Symm. γνώστης, Aq. γνωριστής), is only found in connection with ob, and denotes unquestionably a person acquainted with necromancy, or a conjurer who devoted himself to the invocation of spirits. (For further remarks, see as 1Sa 28:7.).
Verse 32
This series concludes with the moral precept, “Before a hoary head thou shalt rise up (sc., with reverence, Job 29:8), and the countenance (the person) of the old man thou shalt honour and fear before thy God.” God is honoured in the old man, and for this reason reverence for age is required. This
