Verse 17
Which forsaketh the guide of her youth - Leaves her father's house and instructions, and abandons herself to the public.
The covenant of her God - Renounces the true religion, and mixes with idolaters; for among them prostitution was enormous. Or by the covenant may be meant the matrimonial contract, which is a covenant made in the presence of God between the contracting parties, in which they bind themselves to be faithful to each other.