Hence, also, it is manifest that, although God remits the judicial penalty, fornication is displeasing to Him. As to the spiritual judgment of the conscience, there were expiations to propitiate Him; He here only has consideration for young females, lest, being deceived, and having lost their virginity, they should become prostitutes; and thus the land should be defiled by whoredom. The remedy is, that lie who has corrupted girl should be compelled to marry her, and also to give tie a dowry from his own property, lest, if he should afterwards cast her off, she should go away from her bed penniless. But, if the marriage should not please her father, the penalty imposed on her seducer is, that he should assign her a wedding portion.

See the marginal references.

If a man entice a maid - This was an exceedingly wise and humane law, and must have operated powerfully against seduction and fornication; because the person who might feel inclined to take the advantage of a young woman knew that he must marry her, and give her a dowry, if her parents consented; and if they did not consent that their daughter should wed her seducer, in this case he was obliged to give her the full dowry which could have been demanded had she been still a virgin. According to the Targumist here, and to Deuteronomy 22:29, the dowry was fifty shekels of silver, which the seducer was to pay to her father, and he was obliged to take her to wife; nor had he authority, according to the Jewish canons, ever to put her away by a bill of divorce. This one consideration was a powerful curb on disorderly passions, and must tend greatly to render marriages respectable, and prevent all crimes of this nature.

And if a man entice a maid, that is not betrothed,.... For one might be betrothed according to the custom of those times, and not be married, or the nuptials consummated, and so be yet a maid or virgin; but being betrothed, it made the case different, because such an one was as a wife to a man: but the case here supposed is of a maid not betrothed, and also not forced, but yielding to the solicitations of a man, as is implied by her being enticed; which signifies his gaining upon her affections, and obtaining her consent by expressing strong affection for her, and making large promises to her, and so both by words and gestures prevailing with her to yield to his desire:
and lie with her; in a way of carnal copulation; and such an action between two single persons, by consent, is what is called simple fornication: if this was done in a field, the maid was supposed to be forced, since there she might cry out, and not be heard; but if in a city, she is supposed to be enticed, and consent, since if she cried out she might be heard; this the Jewish writers gather from Deuteronomy 22:23, though the law there respects a betrothed damsel:
he shall surely endow her to be his wife; give her a dowry in order to be his wife, or, however, such an one as he would or must give if she became his wife, even one suitable to her rank and dignity, whether he married her or not; for he was not obliged to it whether he would or not, and in some cases could not if he would, as follows.

The seduction of a girl, who belonged to her father as long as she was not betrothed (cf. Exodus 21:7), was also to be regarded as an attack upon the family possession. Whoever persuaded a girl to let him lie with her, was to obtain her for a wife by the payment of a dowry (מהר see Genesis 34:12); and if her father refused to give her to him, he was to weigh (pay) money equivalent to the dowry of maidens, i.e., to pay the father just as much for the disgrace brought upon him by the seduction of his daughter, as maidens would receive for a dowry upon their marriage. The seduction of a girl who was betrothed, was punished much more severely (see Deuteronomy 22:23-24).