The guide of her youth, to wit, her husband, whom she took to be her guide and governor, and that in her youth: which circumstance is added to aggravate her sin and shame, because love is commonly most sincere and fervent between a husband and wife of youth, as they are for that reason emphatically called, Pro_5:18Isa_54:6Joe_1:8Mal_2:14,15.
Forgetteth, i.e. violateth or breaketh, as that word is commonly used in a practical sense.
The covenant of her God; the marriage covenant; so called, partly because God is the author and institutor of that society and mutual obligation; and partly because God is called to be the witness and judge of that solemn promise and covenant, and the avenger of the transgression of it.