Midras Hosea 14:7: Vayikra Rabbah & Sifrei Devarim

Rabbi Abbahu began: “Those who dwell in His shade will return” (Hosea 14:8) – these are the proselytes who come and take shelter in the shade of the Holy One blessed be He. “They will give life to grain” (Hosea 14:8) – they will become primary like Israel, just as it says: “There will be grain for the young men, and new wine will make the young women sing” (Zechariah 9:17).¹The Hebrew phrase degan baḥurim, translated here as, “there will be grain for the young men,” can also be understood to mean “the young men are grain.” Thus, the young men of Israel are compared to grain, which are the primary form of nourishment, and the proselytes are also compared to grain. “They will blossom like the vine” (Hosea 14:8) – just as it says: “You transported a vine from Egypt, drove out the nations and planted it” (Psalms 80:9).
Another matter: “They will give life to grain” (Hosea 14:8) – in the Talmud.²The midrash interprets the verse to mean “they will be given life through grain,” and understands “grain” as an allusion to the Talmud (Etz Yosef). Just as grain nourishes the body, the Talmud nourishes the soul (Maharzu). “They will blossom like the vine” (Hosea 14:8) – in aggada. “Its repute will be like the wine of Lebanon” (Hosea 14:8) – the Holy One blessed be He said: The names of proselytes are dear to me like wine libations that are offered before Me on the altar.
Why is [the Temple] called Lebanon? It is in accordance with: “That good mountain and the Lebanon” (Deuteronomy 3:25).³Lebanon in this verse is understood to refer to the Temple; see Sifri, Va’etḥanan 28; Rashi on Deuteronomy 3:25). Rabbi Shimon ben Yoḥai taught: Why is it called Lebanon? Because it whitens [malbin] the iniquities of Israel like snow. That is what is written: “If your sins will be like scarlet, they will be whitened as snow; if they will be reddened like crimson, they will be like wool” (Isaiah 1:18). Rabbi Tavyomei said: It is because all the hearts [levavot] rejoice in it. That is what is written: “Beautiful in its view, joy of the entire world…” (Psalms 48:3). The Rabbis say: It is in accordance with: “My eyes and My heart [velibi] will be there always” (I Kings 9:3).

R. Shimon b. Yochai says (Psalms 16:11) "sated (sova) with joys in Your presence": Rend it not "sova," but "sheva" (seven). To seven "joys" the faces of the righteous are likened in time to come: the sun, the moon, the firmament, the stars, lightnings, lilies, the menorah of the Temple: the sun and the moon — (Song of Songs 6:10) "beauteous as the moon, clear as the sun." the firmament and the stars — (Daniel 12:3) "The wise will shine like the radiance of the firmament, and the turners of the many to righteousness, like the stars, forever and ever." lightnings — (Nachum 2:5) "and they flash like lightning." lillies (Psalms 45:1) "For the chief musician, on the lillies." the menorah of the Temple — (Hoshea 14:7) "and his glory will be like the olive tree." And (Zechariah 4:3) "There are two olive trees over it (the Temple menorah), one at the right of the bowl and one at the left."

"as the days of the heavens upon the earth": The faces of the righteous will (then) shine as the day (i.e., the sun). And thus is it written (Judges 5:31) "and His lovers, like the sun emerging in its strength." (Psalms 16:11) "… with seven joys, Your face": With seven joys the faces of the righteous are destined to receive the Face of the Shechinah in the world to come: [1] "His lovers like the sun emerging in its strength", [2] (Song of Songs 6:10) "fair as the moon", [3] (Daniel 12:3) "and the wise ones will shine as the brightness of the firmament", [4] "and they that turn the many to righteousness (will shine) as the stars forever", [5] (Nachum 2:4) "and like lightnings shall they run", [6] (Psalms 45:1) "To the chief musician upon shoshanim (the righteous, whose faces are like shoshanim (lilies)", [7] (Hoshea 14:7) "and his beauty will be as that of the olive tree."