Midrasz do Rut 1:14

Rabbi Ḥanina son of Rabbi Abbahu interpreted the verse as referring to Moses. Moses said before the Holy One blessed be He: Master of the universe, I lauded you with the word hen, as it is stated: “Behold [hen], to the Lord are the heavens and the heaven of heavens” (Deuteronomy (10:14), and I believed that You would accord me greatness. “Would you constrain yourselves for them [halahen te’agena],” instead, You caused the angel of death to touch me [hogatani], You forsook my hen, and You said to me: “Behold [hen], your days approach that you must die” (Deuteronomy 31:14). Then he [Moses] said to Israel: “No [al], my daughters,” woe [alelai] my children, “for I am greatly embittered for you,” because of you, “as the hand of God has emerged against me” and my brother [Aaron].

“They raised their voices, and wept again. Orpa kissed her mother-in-law, but Ruth cleaved to her” (Ruth 1:14).
“They raised [vatisena] their voices, and wept.” [The word vatisena appears in this verse] without an alef [indicating that] their strength was weakened,¹¹⁸The word is missing a letter to allude to the fact that their strength became lacking. as they were walking and weeping. Rabbi Berekhya in the name of Rabbi Yitzḥak: Orpa walked forty paces with her mother-in-law [before leaving], and [therefore] her descendant’s [sentence] was in abeyance for forty days, as it is stated: “The Philistine approached morning and evening [and stood for forty days]” (I Samuel 17:16).¹¹⁹The midrash claims that the Philistine warrior Goliath was a descendant of Orpa. He challenged the Israelites for forty days until David confronted him and killed him. Rabbi Yudan in the name of Rabbi Yitzḥak: Orpa walked four mil with her mother-in-law, and four mighty men came from her, as it is stated: “These four were born to the giant [harafa]”¹²⁰An allusion to Orpa. (II Samuel 21:22). Rabbi Yitzḥak said: Throughout that night that Orpa took her leave from her mother-in-law, the nakedness of one hundred gentiles was intermingled with her; that is what is written: “He spoke with them…from the ranks [mima’arkhot] of the Philistines” (I Samuel 17:23) – mime’arot is written; from one hundred foreskins [me’a orlot] of gentiles that were inserted into her throughout the night. Rabbi Tanḥuma said: One dog, too, as it is written: “The Philistine said to David: Am I a dog?” (I Samuel 17:43).

“Orpa kissed her mother-in-law.” All kisses are of licentiousness, except for three: A kiss of greatness, a kiss of absence, and a kiss of parting. A kiss of greatness, as it is written: “Samuel took a flask of oil, and poured it on his head, and kissed him” (I Samuel 10:1). Of absence, as it is written: “He met him at the mountain of God at Ḥorev [and he kissed him]” (Exodus 4:27). Of parting, as it is stated: “Orpa kissed her mother-in-law.” Rabbi Tanḥuma said: Even a kiss of closeness, as it is stated: “Jacob kissed Rachel” (Genesis 29:11). Why? It is because she was his relative.
“She said: Behold, your sister-in-law has returned to her people, and to her god; return after your sister-in-law” (Ruth 1:15).
“She said: Behold, your sister-in-law has returned [to her people, and to her god]…” – once she returned to her people she returned to her god.

(II Sam. 21) And they all fell in the hand of David and his servants. (Ruth 1, 14) And Orpa kissed her mother-in-law; but Ruth cleaved unto her. To whom does this refer? To the following passage said R. Isaac: "The Holy One, praised be He, said, 'Let the children of the one who kissed her, fall in to the hand of the one who cleaved unto her.'" Raba expounded: "As a reward for the four tears which Orpa shed over her mother-in-law, she was rewarded that the four giants were descended from her." The four tears are referred to in the following passage (Ib., ib.,14) And they lifted up their voices and wept a long time.

Give instructions to the wise and he will become yet wiser (Pr. 9, 9). "This refers," said R. Elazar, "to Ruth, the Moabite, and to Samuel of Ramath. As to Ruth, although Na'omi said to her, (Ruth 3, 3.) Therefore bathe, and anoint thyself and put thy garments upon thee, still Ruth did otherwise, as it is written (Ib. ib. 6.) And she went down at the threshing floor, and then it says, And she did in accordance with all that her mother-in-law commanded her. Concerning Samuel, although Eli said to him (I Sam. 3, 9.) Go, lie down, and it shall be, if He call thee, that thou shall say, Speak Lord, for thy servant heareth, Samuel did otherwise, at it is written (Ib. ib. 10.) And the Lord came, and placed Himself and called as at the previous times, Samuel, Samuel. And Samuel said, Speak, for thy servant heareth, and he did not say Speak Lord [lest it might not be the Sheehina on account of which God's name cannot be mentioned]." And she went, and came and gleaned in the field after the reapers (Ib. 2, 3). R. Elazar said: "She went and came, to and fro. until she found such men as were fit company for her." And Bo'az said, etc., Whose maiden is this? (Ib.) Was it proper for Bo'az to inquire whose maiden she was? R. Elazar said: "He noticed an act of wisdom committed by her, viz., two ears of corn she picked up, but three she did not." In a Baraitha we are taught: "He noticed that she was very modest, the standing sheaves she gleaned while she was standing and the sheaves that were lying on the ground, she gleaned while sitting." And keep close company with my own maidens. (Ib.) Was it proper for Bo'az to be attached to women? R. Elazar said: "As soon as Bo'az saw Orpah kissed her mother-in-law, but Ruth clung unto her (Ib. 1, 14), he thought it proper to be attached to her.'" And Bo'az said unto her, at meal time. 'Come near hither.' (Ib.) R. Elazar said: "By the word Halom (hither) he intimated to her that from her is destined to come forth the kingdom of David, who also used the expression, Halom (hither), as it is said (II Sam. 7, 18.) Then King David went in, and sat down before the Lord, and said. Who am I, O Lord Eternal? And what is my house that Thou hast brought me thither (halom)?" And dip thy morsel in the vinegar (Ruth 2, 14). "We infer from this," said R. Elazar, 'that vinegar is good for [relieving] heat." But R. Samuel b. Nachmeini said: "This was also an intimation to her, viz., it is destined that a son shall come forth from thee whose deeds will be as sour as vinegar (evil acts) and this refers , to King Menashe." And she seated herself beside the. reapers. (Ib.) R. Elazar said: "She took a seat beside the reapers, and not between them; this was also an intimation to her, viz., the kingdom of David is destined to be divided." And he reached her parched corn, and she ate, etc., (Ib.) R. Elazar said: "She ate, refers to the days of David [when Israel had already enjoyed rest]; Was satisfied, refers to the times of Solomon; And had some left; refers to the days of Hezekiah." Others say: "And she ate, refers to the days of David and Solomon; And was satisfied, refers to the days of King Hezekiah; And had some left, refers to the days of Rabbi; for the master said the officer of the stables of Rabbi was richer than the King Shabur (Persian Shah)." We are taught: "And she ate; refers to this world; And was satisfied, refers to the world to come; And had some left, refers to the time of Messiah."

Another interpretation (of Exod. 4:27): AND KISSED HIM. All kisses are indecent except three, and these are the following: the kiss of departure, the kiss of greatness, and the kiss of reunion (literally: of crossroads).¹¹⁷Exod.R.5:1. The kiss of departure <is not silly> because it is stated (in Ruth 1:14): AND ORPAH KISSED HER MOTHER-IN-LAW; the kiss of greatness, because it is stated (in I Sam. 10:1): THEN SAMUEL TOOK THE FLASK OF OIL, POURED IT UPON HIS HEAD, AND KISSED HIM….; the kiss of reunion, because it is stated (in Exod. 4:27): SO HE WENT TO MEET HIM <ON THE MOUNTAIN OF GOD> AND KISSED HIM.

Have kissed each other (Ps. 85:11) tells us that he kissed him. Our rabbis teach us that all but three kinds of kisses are frivolous. Those not frivolous are the kiss of parting, the kiss of homage, (and) the kiss of reunion. How do we know about the kiss of parting? From the fact that it is written: And Orpah kissed her mother-in-law Ruth (Ruth 1:14); the kiss of homage we know from what is written: Then Samuel took the vial of oil, poured it upon his head, and kissed him (I Sam. 10:1); we know about the kiss of reunion because it is written: And he went, and met him in the mountain of God and kissed him (Exod. 2:27).