Midrash su Salmi 85:11

Another interpretation (of Exod. 4:27): GO INTO THE DESERT TO MEET MOSES. This text is related (to Ps. 85:11 [10]): FAITHFULNESS AND TRUTH MEET; RIGHTEOUSNESS AND PEACE KISS.¹¹⁵Tanh., Exod. 1:28; Exod. R. 5:10. RIGHTEOUSNESS: This is Moses, <of whom> it is stated (in Deut. 33:21): HE CARRIED OUT THE LORD'S RIGHTEOUSNESS.¹¹⁶The biblical context is Moses’ blessing of Gad. For the midrash these words form part of an aside at the conclusion of the Gad blessing. So understood, they refer to the one giving the blessing, i.e., Moses. PEACE: This is Aaron, of whom it is stated (in Mal. 2:6): IN PEACE AND UPRIGHTNESS HE WALKED WITH ME. FAITHFULNESS: This is Aaron, of whom it is stated (in Deut. 33:8): AND OF LEVI HE SAID: LET YOUR THUMMIM AND URIM BE WITH YOUR FAITHFUL ONE. AND TRUTH ('MT): This is Moses, of whom it is stated (of Moses in Numb. 12:7): HE IS TRUSTED (rt.: 7MN) IN ALL MY HOUSE. Therefore (in Ps. 85:11 [10]): FAITHFULNESS AND TRUTH MEET. (Exod. 4:27): SO HE (Aaron) WENT TO MEET HIM (Moses) <ON THE MOUNTAIN OF GOD>. (Ps. 85:11 [10], cont.): RIGHTEOUSNESS AND PEACE KISS. (Exod. 4:27, cont.): AND KISSED HIM.

Go into the wilderness to meet Moses (Exod. 4:27). Scripture states elsewhere in allusion to this verse: Mercy and truth are met together; righteousness and peace have kissed each other (Ps. 85:11). Mercy refers to Aaron, as it is said: And of Levi he said: Thy Thummin and Thy Urim be with thy Merciful One (Deut. 33:8). While truth alludes to Moses, as is said: He is trusted in all My house (Num. 12:7). Hence, Mercy and truth are met together; righteousness and peace have kissed each other. Righteousness refers to Moses, as it is said: He executed the righteousness of the Lord (Deut. 33:21), while peace applies to Aaron, as is said: He walked with me in peace and righteousness (Mal. 11:6).

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).