It is a very ill-favoured story that is here told concerning Judah; one would not have expected such folly in Israel. Judah had buried his wife; and widowers have need to stand upon their guard with the utmost caution and resolution against all fleshly lusts. He was unjust to his daughter-in-law, either through negligence or design, in not giving her his surviving son, and this exposed her to temptation.
I. Tamar wickedly prostituted herself as a harlot to Judah, that, if the son might not, the father might raise up seed to the deceased. Some excuse this by suggesting that, though she was a Canaanite, yet she had embraced the true religion, and believed the promise made to Abraham and his seed, particularly that of the Messiah, who was to descend from the loins of Judah, and that she was therefore thus earnestly desirous to have a child by one of that family that she might have the honour, or at least stand fair for the honour, of being the mother of the Messiah. And, if this was indeed her desire, it had its success; she is one of the four women particularly named in the genealogy of Christ, Mat 1:3. Her sinful practice was pardoned, and her good intention was accepted, which magnifies the grace of God, but can by no means be admitted to justify or encourage the like. Bishop Patrick thinks it probable that she hoped Shelah, who was by right her husband, might have come along with his father, and that he might have been allured to her embraces. There was a great deal of plot and contrivance in Tamar's sin. 1. She took an opportunity for it, when Judah had a time of mirth and feasting with his sheep-shearers. Note, Time of jollity often prove times of temptation, particularly to the sin of uncleanness; when men are fed to the full, the reins are apt to be let loose. 2. She exposed herself as a harlot in an open place, Gen 38:14. Those that are, and would be, chaste, must be keepers at home, Tit 2:5. It should seem, it was the custom of harlots, in those times, to cover their faces, that, though they were not ashamed, yet they might seem to be so. The sin of uncleanness did not then go so barefaced as it does now.
II. Judah was taken in the snare, and though it was ignorantly that he was guilty of incest with his daughter-in-law (not knowing who she was), yet he was willfully guilty of fornication: whoever she was, he knew she was not his wife, and therefore not to be touched. Nor was his sin capable, in the least, of such a charitable excuse as some make for Tamar, that though the action was bad the intention possibly might be good. Observe, 1. Judah's sin began in the eye (Gen 38:15): He saw her. Note, Those have eyes, and hearts too, full of adultery (as it is Pe2 2:14), that catch at every bait that presents itself to them and are as tinder to every spark. We have need to make a covenant with our eyes, and to turn them from beholding vanity, lest the eye infect the heart. 2. It added to the scandal that the hire of a harlot (than which nothing is more infamous) was demanded, offered, and accepted - a kid from the flock, a goodly price at which her chastity and honour were valued! Nay, had the consideration been thousands of rams, and ten thousand rivers of oil, it had not been a valuable consideration. The favour of God, the purity of the soul, the peace of conscience, and the hope of heaven, are too precious to be exposed to sale at any such rates; the Topaz of Ethiopia cannot equal them: what are those profited that lose their souls to gain the world? 3. It turned to the reproach of Judah that he left his jewels in pawn for a kid. Note, Fleshly lusts are not only brutish, but sottish, and ruining to men's secular interests. It is plain that whoredom, as well as wine, and new wine, takes away the heart first, else it would never take away the signet and the bracelets.
III. He lost his jewels by the bargain; he sent the kid, according to this promise, to redeem his pawn, but the supposed harlot could not be found. He sent it by his friend (who was indeed his back-friend, because he was aiding and abetting in his evil deeds) the Adullamite, who came back without the pledge. It is a good account (if it be but true) of any place which they here gave, there is no harlot in this place; for such sinners are the scandals and plagues of any place. Judah sits down content to lose his signet and his bracelets, and forbids his friend to make any further enquiry after them, giving this reason, lest we be shamed, Gen 38:23. Either, 1. Lest his sin should come to be known publicly, and be talked of. Fornication and uncleanness have ever been looked upon as scandalous things and the reproach and shame of those that are convicted of them. Nothing will make those blush that are not ashamed of these. 2. Lest he should be laughed at as a fool for trusting a strumpet with his signet and his bracelets. He expresses no concern about the sin, to get that pardoned, only about the shame, to prevent that. Note, There are many who are more solicitous to preserve their reputation with men than to secure the favour of God and a good conscience; lest we be shamed goes further with them than lest we be damned.

Wilt thou give me a pledge till thou send it? - The word ערבון erabon signifies an earnest of something promised, a part of the price agreed for between a buyer and seller, by giving and receiving of which the bargain was ratified; or a deposit, which was to be restored when the thing promised should be given. St. Paul uses the same word in Greek letters, αρῥαβων, Co2 1:22; Eph 1:14. From the use of the term in this history we may at once see what the apostle means by the Holy Spirit being the Earnest, αρῥαβων, of the promised inheritance; viz., a security given in hand for the fulfillment of all God's promises relative to grace and eternal life. We may learn from this that eternal life will be given in the great day to all who can produce this erabon or pledge. He who has the earnest of the Spirit then in his heart shall not only be saved from death, but have that eternal life of which it is the pledge and the evidence. What the pledge given by Judah was, see on Gen 38:25 (note).

And she arose and went away,.... To her father's house immediately, as soon as ever she had parted with Judah; and lest she should be found by the person that would be sent with the kid, and be discovered, she made all the haste she could:

and laid by her veil from her, and put on the garments of her widowhood; that it might not be known or suspected that she had been abroad.

signet, &c.--Bracelets, including armlets, were worn by men as well as women among the Hebrews. But the Hebrew word here rendered "bracelets," is everywhere else translated "lace" or "ribbon"; so that as the signet alone was probably more than an equivalent for the kid, it is not easy to conjecture why the other things were given in addition, except by supposing the perforated seal was attached by a ribbon to the staff.